Home / 730,397.60-1,007,953.64-408,121.28

Finding the Fourth Proportional to 730,397.60, 1,007,953.64 and 408,121.28

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Solution

The fourth proportional to 730,397.60, 1,007,953.64 and 408,121.28 is: 563,210.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    730,397.60 : 1,007,953.64 = 408,121.28 : x
  2. Step 2: Convert to fraction form
    730,397.60/1,007,953.64 = 408,121.28/x
  3. Step 3: Cross multiply
    730,397.60x = 1,007,953.64 × 408,121.28
  4. Step 4: Simplify right side
    730,397.60x = 411,367,329,737.46
  5. Step 5: Solve for x
    x = 411,367,329,737.46/730,397.60
  6. Step 6: Final answer
    x = 563,210.13

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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.