Home / 730,411.02-1,007,948.30-408,123.78

Finding the Fourth Proportional to 730,411.02, 1,007,948.30 and 408,123.78

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Solution

The fourth proportional to 730,411.02, 1,007,948.30 and 408,123.78 is: 563,200.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    730,411.02 : 1,007,948.30 = 408,123.78 : x
  2. Step 2: Convert to fraction form
    730,411.02/1,007,948.30 = 408,123.78/x
  3. Step 3: Cross multiply
    730,411.02x = 1,007,948.30 × 408,123.78
  4. Step 4: Simplify right side
    730,411.02x = 411,367,670,240.57
  5. Step 5: Solve for x
    x = 411,367,670,240.57/730,411.02
  6. Step 6: Final answer
    x = 563,200.25

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.