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Finding the Fourth Proportional to 578,469.60, 867,704.40 and 566,659.80

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Solution

The fourth proportional to 578,469.60, 867,704.40 and 566,659.80 is: 849,989.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,469.60 : 867,704.40 = 566,659.80 : x
  2. Step 2: Convert to fraction form
    578,469.60/867,704.40 = 566,659.80/x
  3. Step 3: Cross multiply
    578,469.60x = 867,704.40 × 566,659.80
  4. Step 4: Simplify right side
    578,469.60x = 491,693,201,763.12
  5. Step 5: Solve for x
    x = 491,693,201,763.12/578,469.60
  6. Step 6: Final answer
    x = 849,989.70

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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.