Home / 904,123.30-1,357,740.15-639,739.30

Finding the Fourth Proportional to 904,123.30, 1,357,740.15 and 639,739.30

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Solution

The fourth proportional to 904,123.30, 1,357,740.15 and 639,739.30 is: 960,709.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    904,123.30 : 1,357,740.15 = 639,739.30 : x
  2. Step 2: Convert to fraction form
    904,123.30/1,357,740.15 = 639,739.30/x
  3. Step 3: Cross multiply
    904,123.30x = 1,357,740.15 × 639,739.30
  4. Step 4: Simplify right side
    904,123.30x = 868,599,733,142.90
  5. Step 5: Solve for x
    x = 868,599,733,142.90/904,123.30
  6. Step 6: Final answer
    x = 960,709.38

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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.