Home / 681,006.72-939,780.45-375,077.28

Finding the Fourth Proportional to 681,006.72, 939,780.45 and 375,077.28

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Solution

The fourth proportional to 681,006.72, 939,780.45 and 375,077.28 is: 517,601.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,006.72 : 939,780.45 = 375,077.28 : x
  2. Step 2: Convert to fraction form
    681,006.72/939,780.45 = 375,077.28/x
  3. Step 3: Cross multiply
    681,006.72x = 939,780.45 × 375,077.28
  4. Step 4: Simplify right side
    681,006.72x = 352,490,294,983.18
  5. Step 5: Solve for x
    x = 352,490,294,983.18/681,006.72
  6. Step 6: Final answer
    x = 517,601.79

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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.