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Finding the Fourth Proportional to 634,559.31, 951,365.54 and 381,780.57

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Solution

The fourth proportional to 634,559.31, 951,365.54 and 381,780.57 is: 572,386.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,559.31 : 951,365.54 = 381,780.57 : x
  2. Step 2: Convert to fraction form
    634,559.31/951,365.54 = 381,780.57/x
  3. Step 3: Cross multiply
    634,559.31x = 951,365.54 × 381,780.57
  4. Step 4: Simplify right side
    634,559.31x = 363,212,876,230.66
  5. Step 5: Solve for x
    x = 363,212,876,230.66/634,559.31
  6. Step 6: Final answer
    x = 572,386.02

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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.