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Finding the Fourth Proportional to 564,930.02, 779,622.10 and 310,304.90

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Solution

The fourth proportional to 564,930.02, 779,622.10 and 310,304.90 is: 428,231.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,930.02 : 779,622.10 = 310,304.90 : x
  2. Step 2: Convert to fraction form
    564,930.02/779,622.10 = 310,304.90/x
  3. Step 3: Cross multiply
    564,930.02x = 779,622.10 × 310,304.90
  4. Step 4: Simplify right side
    564,930.02x = 241,920,557,778.29
  5. Step 5: Solve for x
    x = 241,920,557,778.29/564,930.02
  6. Step 6: Final answer
    x = 428,231.02

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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.