Home / 656,469.20-985,092.60-478,528.40

Finding the Fourth Proportional to 656,469.20, 985,092.60 and 478,528.40

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Solution

The fourth proportional to 656,469.20, 985,092.60 and 478,528.40 is: 718,076.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,469.20 : 985,092.60 = 478,528.40 : x
  2. Step 2: Convert to fraction form
    656,469.20/985,092.60 = 478,528.40/x
  3. Step 3: Cross multiply
    656,469.20x = 985,092.60 × 478,528.40
  4. Step 4: Simplify right side
    656,469.20x = 471,394,785,729.84
  5. Step 5: Solve for x
    x = 471,394,785,729.84/656,469.20
  6. Step 6: Final answer
    x = 718,076.01

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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.