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Finding the Fourth Proportional to 641,750.90, 962,626.35 and 442,685.30

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Solution

The fourth proportional to 641,750.90, 962,626.35 and 442,685.30 is: 664,027.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,750.90 : 962,626.35 = 442,685.30 : x
  2. Step 2: Convert to fraction form
    641,750.90/962,626.35 = 442,685.30/x
  3. Step 3: Cross multiply
    641,750.90x = 962,626.35 × 442,685.30
  4. Step 4: Simplify right side
    641,750.90x = 426,140,534,537.66
  5. Step 5: Solve for x
    x = 426,140,534,537.66/641,750.90
  6. Step 6: Final answer
    x = 664,027.95

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Double scale
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Similar ratio
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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.