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Finding the Fourth Proportional to 564,704.92, 779,290.51 and 322,987.15

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Solution

The fourth proportional to 564,704.92, 779,290.51 and 322,987.15 is: 445,720.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,704.92 : 779,290.51 = 322,987.15 : x
  2. Step 2: Convert to fraction form
    564,704.92/779,290.51 = 322,987.15/x
  3. Step 3: Cross multiply
    564,704.92x = 779,290.51 × 322,987.15
  4. Step 4: Simplify right side
    564,704.92x = 251,700,815,335.56
  5. Step 5: Solve for x
    x = 251,700,815,335.56/564,704.92
  6. Step 6: Final answer
    x = 445,720.96

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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.