Home / 929,889.78-1,283,290.52-516,428.44

Finding the Fourth Proportional to 929,889.78, 1,283,290.52 and 516,428.44

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Solution

The fourth proportional to 929,889.78, 1,283,290.52 and 516,428.44 is: 712,694.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    929,889.78 : 1,283,290.52 = 516,428.44 : x
  2. Step 2: Convert to fraction form
    929,889.78/1,283,290.52 = 516,428.44/x
  3. Step 3: Cross multiply
    929,889.78x = 1,283,290.52 × 516,428.44
  4. Step 4: Simplify right side
    929,889.78x = 662,727,721,310.39
  5. Step 5: Solve for x
    x = 662,727,721,310.39/929,889.78
  6. Step 6: Final answer
    x = 712,694.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.