Home / 1,013,431.20-1,520,146.80-265,552.80

Finding the Fourth Proportional to 1,013,431.20, 1,520,146.80 and 265,552.80

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Solution

The fourth proportional to 1,013,431.20, 1,520,146.80 and 265,552.80 is: 398,329.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,013,431.20 : 1,520,146.80 = 265,552.80 : x
  2. Step 2: Convert to fraction form
    1,013,431.20/1,520,146.80 = 265,552.80/x
  3. Step 3: Cross multiply
    1,013,431.20x = 1,520,146.80 × 265,552.80
  4. Step 4: Simplify right side
    1,013,431.20x = 403,679,239,151.04
  5. Step 5: Solve for x
    x = 403,679,239,151.04/1,013,431.20
  6. Step 6: Final answer
    x = 398,329.20

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.