Home / 930,397.76-1,283,945.28-522,442.88

Finding the Fourth Proportional to 930,397.76, 1,283,945.28 and 522,442.88

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Solution

The fourth proportional to 930,397.76, 1,283,945.28 and 522,442.88 is: 720,969.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    930,397.76 : 1,283,945.28 = 522,442.88 : x
  2. Step 2: Convert to fraction form
    930,397.76/1,283,945.28 = 522,442.88/x
  3. Step 3: Cross multiply
    930,397.76x = 1,283,945.28 × 522,442.88
  4. Step 4: Simplify right side
    930,397.76x = 670,788,069,845.61
  5. Step 5: Solve for x
    x = 670,788,069,845.61/930,397.76
  6. Step 6: Final answer
    x = 720,969.14

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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.