Home / 861,344.28-1,292,287.96-405,917.14

Finding the Fourth Proportional to 861,344.28, 1,292,287.96 and 405,917.14

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Solution

The fourth proportional to 861,344.28, 1,292,287.96 and 405,917.14 is: 609,003.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,344.28 : 1,292,287.96 = 405,917.14 : x
  2. Step 2: Convert to fraction form
    861,344.28/1,292,287.96 = 405,917.14/x
  3. Step 3: Cross multiply
    861,344.28x = 1,292,287.96 × 405,917.14
  4. Step 4: Simplify right side
    861,344.28x = 524,561,832,779.63
  5. Step 5: Solve for x
    x = 524,561,832,779.63/861,344.28
  6. Step 6: Final answer
    x = 609,003.68

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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.