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Finding the Fourth Proportional to 632,635.80, 947,571.30 and 491,285.40

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Solution

The fourth proportional to 632,635.80, 947,571.30 and 491,285.40 is: 735,854.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,635.80 : 947,571.30 = 491,285.40 : x
  2. Step 2: Convert to fraction form
    632,635.80/947,571.30 = 491,285.40/x
  3. Step 3: Cross multiply
    632,635.80x = 947,571.30 × 491,285.40
  4. Step 4: Simplify right side
    632,635.80x = 465,527,945,149.02
  5. Step 5: Solve for x
    x = 465,527,945,149.02/632,635.80
  6. Step 6: Final answer
    x = 735,854.57

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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.