Home / 1,013,435.70-1,520,153.55-265,557.30

Finding the Fourth Proportional to 1,013,435.70, 1,520,153.55 and 265,557.30

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Solution

The fourth proportional to 1,013,435.70, 1,520,153.55 and 265,557.30 is: 398,335.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,013,435.70 : 1,520,153.55 = 265,557.30 : x
  2. Step 2: Convert to fraction form
    1,013,435.70/1,520,153.55 = 265,557.30/x
  3. Step 3: Cross multiply
    1,013,435.70x = 1,520,153.55 × 265,557.30
  4. Step 4: Simplify right side
    1,013,435.70x = 403,687,872,323.42
  5. Step 5: Solve for x
    x = 403,687,872,323.42/1,013,435.70
  6. Step 6: Final answer
    x = 398,335.95

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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.