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Finding the Fourth Proportional to 656,141.20, 982,656.60 and 656,141.20

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Solution

The fourth proportional to 656,141.20, 982,656.60 and 656,141.20 is: 982,656.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,141.20 : 982,656.60 = 656,141.20 : x
  2. Step 2: Convert to fraction form
    656,141.20/982,656.60 = 656,141.20/x
  3. Step 3: Cross multiply
    656,141.20x = 982,656.60 × 656,141.20
  4. Step 4: Simplify right side
    656,141.20x = 644,761,480,711.92
  5. Step 5: Solve for x
    x = 644,761,480,711.92/656,141.20
  6. Step 6: Final answer
    x = 982,656.60

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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.