Home / 822,921.60-1,234,382.40-262,012.80

Finding the Fourth Proportional to 822,921.60, 1,234,382.40 and 262,012.80

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Solution

The fourth proportional to 822,921.60, 1,234,382.40 and 262,012.80 is: 393,019.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    822,921.60 : 1,234,382.40 = 262,012.80 : x
  2. Step 2: Convert to fraction form
    822,921.60/1,234,382.40 = 262,012.80/x
  3. Step 3: Cross multiply
    822,921.60x = 1,234,382.40 × 262,012.80
  4. Step 4: Simplify right side
    822,921.60x = 323,423,988,894.72
  5. Step 5: Solve for x
    x = 323,423,988,894.72/822,921.60
  6. Step 6: Final answer
    x = 393,019.20

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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.