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Finding the Fourth Proportional to 658,190.40, 987,285.60 and 377,476.80

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Solution

The fourth proportional to 658,190.40, 987,285.60 and 377,476.80 is: 566,215.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,190.40 : 987,285.60 = 377,476.80 : x
  2. Step 2: Convert to fraction form
    658,190.40/987,285.60 = 377,476.80/x
  3. Step 3: Cross multiply
    658,190.40x = 987,285.60 × 377,476.80
  4. Step 4: Simplify right side
    658,190.40x = 372,677,408,974.08
  5. Step 5: Solve for x
    x = 372,677,408,974.08/658,190.40
  6. Step 6: Final answer
    x = 566,215.20

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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.