Home / 904,128.30-1,357,747.65-639,744.30

Finding the Fourth Proportional to 904,128.30, 1,357,747.65 and 639,744.30

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Solution

The fourth proportional to 904,128.30, 1,357,747.65 and 639,744.30 is: 960,716.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    904,128.30 : 1,357,747.65 = 639,744.30 : x
  2. Step 2: Convert to fraction form
    904,128.30/1,357,747.65 = 639,744.30/x
  3. Step 3: Cross multiply
    904,128.30x = 1,357,747.65 × 639,744.30
  4. Step 4: Simplify right side
    904,128.30x = 868,611,319,925.90
  5. Step 5: Solve for x
    x = 868,611,319,925.90/904,128.30
  6. Step 6: Final answer
    x = 960,716.88

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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.