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Finding the Fourth Proportional to 641,414.63, 963,367.52 and 472,266.92

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Solution

The fourth proportional to 641,414.63, 963,367.52 and 472,266.92 is: 709,317.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,414.63 : 963,367.52 = 472,266.92 : x
  2. Step 2: Convert to fraction form
    641,414.63/963,367.52 = 472,266.92/x
  3. Step 3: Cross multiply
    641,414.63x = 963,367.52 × 472,266.92
  4. Step 4: Simplify right side
    641,414.63x = 454,966,604,320.27
  5. Step 5: Solve for x
    x = 454,966,604,320.27/641,414.63
  6. Step 6: Final answer
    x = 709,317.48

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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.