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Finding the Fourth Proportional to 622,856.60, 934,284.90 and 498,440.60

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Solution

The fourth proportional to 622,856.60, 934,284.90 and 498,440.60 is: 747,660.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,856.60 : 934,284.90 = 498,440.60 : x
  2. Step 2: Convert to fraction form
    622,856.60/934,284.90 = 498,440.60/x
  3. Step 3: Cross multiply
    622,856.60x = 934,284.90 × 498,440.60
  4. Step 4: Simplify right side
    622,856.60x = 465,685,526,126.94
  5. Step 5: Solve for x
    x = 465,685,526,126.94/622,856.60
  6. Step 6: Final answer
    x = 747,660.90

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Double scale
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Similar ratio
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1.5x scale

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.