Home / 712,781.26-1,069,331.45-239,453.71

Finding the Fourth Proportional to 712,781.26, 1,069,331.45 and 239,453.71

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Solution

The fourth proportional to 712,781.26, 1,069,331.45 and 239,453.71 is: 359,234.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,781.26 : 1,069,331.45 = 239,453.71 : x
  2. Step 2: Convert to fraction form
    712,781.26/1,069,331.45 = 239,453.71/x
  3. Step 3: Cross multiply
    712,781.26x = 1,069,331.45 × 239,453.71
  4. Step 4: Simplify right side
    712,781.26x = 256,055,379,051.58
  5. Step 5: Solve for x
    x = 256,055,379,051.58/712,781.26
  6. Step 6: Final answer
    x = 359,234.16

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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.