Home / 763,411.20-1,145,116.80-202,502.40

Finding the Fourth Proportional to 763,411.20, 1,145,116.80 and 202,502.40

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Solution

The fourth proportional to 763,411.20, 1,145,116.80 and 202,502.40 is: 303,753.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,411.20 : 1,145,116.80 = 202,502.40 : x
  2. Step 2: Convert to fraction form
    763,411.20/1,145,116.80 = 202,502.40/x
  3. Step 3: Cross multiply
    763,411.20x = 1,145,116.80 × 202,502.40
  4. Step 4: Simplify right side
    763,411.20x = 231,888,900,280.32
  5. Step 5: Solve for x
    x = 231,888,900,280.32/763,411.20
  6. Step 6: Final answer
    x = 303,753.60

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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.