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Finding the Fourth Proportional to 656,143.20, 982,659.60 and 656,143.20

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Solution

The fourth proportional to 656,143.20, 982,659.60 and 656,143.20 is: 982,659.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,143.20 : 982,659.60 = 656,143.20 : x
  2. Step 2: Convert to fraction form
    656,143.20/982,659.60 = 656,143.20/x
  3. Step 3: Cross multiply
    656,143.20x = 982,659.60 × 656,143.20
  4. Step 4: Simplify right side
    656,143.20x = 644,765,414,454.72
  5. Step 5: Solve for x
    x = 644,765,414,454.72/656,143.20
  6. Step 6: Final answer
    x = 982,659.60

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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.