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Finding the Fourth Proportional to 632,724.80, 947,704.80 and 491,374.40

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Solution

The fourth proportional to 632,724.80, 947,704.80 and 491,374.40 is: 735,988.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,724.80 : 947,704.80 = 491,374.40 : x
  2. Step 2: Convert to fraction form
    632,724.80/947,704.80 = 491,374.40/x
  3. Step 3: Cross multiply
    632,724.80x = 947,704.80 × 491,374.40
  4. Step 4: Simplify right side
    632,724.80x = 465,677,877,477.12
  5. Step 5: Solve for x
    x = 465,677,877,477.12/632,724.80
  6. Step 6: Final answer
    x = 735,988.03

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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.