Home / 904,110.30-1,357,720.65-639,726.30

Finding the Fourth Proportional to 904,110.30, 1,357,720.65 and 639,726.30

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Solution

The fourth proportional to 904,110.30, 1,357,720.65 and 639,726.30 is: 960,689.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    904,110.30 : 1,357,720.65 = 639,726.30 : x
  2. Step 2: Convert to fraction form
    904,110.30/1,357,720.65 = 639,726.30/x
  3. Step 3: Cross multiply
    904,110.30x = 1,357,720.65 × 639,726.30
  4. Step 4: Simplify right side
    904,110.30x = 868,569,607,858.10
  5. Step 5: Solve for x
    x = 868,569,607,858.10/904,110.30
  6. Step 6: Final answer
    x = 960,689.87

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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.