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Finding the Fourth Proportional to 658,204.40, 987,306.60 and 658,204.40

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Solution

The fourth proportional to 658,204.40, 987,306.60 and 658,204.40 is: 987,306.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,204.40 : 987,306.60 = 658,204.40 : x
  2. Step 2: Convert to fraction form
    658,204.40/987,306.60 = 658,204.40/x
  3. Step 3: Cross multiply
    658,204.40x = 987,306.60 × 658,204.40
  4. Step 4: Simplify right side
    658,204.40x = 649,849,548,269.04
  5. Step 5: Solve for x
    x = 649,849,548,269.04/658,204.40
  6. Step 6: Final answer
    x = 987,306.60

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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.