Home / 947,387.56-1,418,534.86-721,672.76

Finding the Fourth Proportional to 947,387.56, 1,418,534.86 and 721,672.76

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Solution

The fourth proportional to 947,387.56, 1,418,534.86 and 721,672.76 is: 1,080,569.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    947,387.56 : 1,418,534.86 = 721,672.76 : x
  2. Step 2: Convert to fraction form
    947,387.56/1,418,534.86 = 721,672.76/x
  3. Step 3: Cross multiply
    947,387.56x = 1,418,534.86 × 721,672.76
  4. Step 4: Simplify right side
    947,387.56x = 1,023,717,967,572.41
  5. Step 5: Solve for x
    x = 1,023,717,967,572.41/947,387.56
  6. Step 6: Final answer
    x = 1,080,569.36

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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.