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Finding the Fourth Proportional to 622,893.90, 935,377.65 and 342,612.30

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Solution

The fourth proportional to 622,893.90, 935,377.65 and 342,612.30 is: 514,488.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,893.90 : 935,377.65 = 342,612.30 : x
  2. Step 2: Convert to fraction form
    622,893.90/935,377.65 = 342,612.30/x
  3. Step 3: Cross multiply
    622,893.90x = 935,377.65 × 342,612.30
  4. Step 4: Simplify right side
    622,893.90x = 320,471,888,035.10
  5. Step 5: Solve for x
    x = 320,471,888,035.10/622,893.90
  6. Step 6: Final answer
    x = 514,488.72

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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.