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Finding the Fourth Proportional to 664,354.80, 996,532.20 and 652,690.80

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Solution

The fourth proportional to 664,354.80, 996,532.20 and 652,690.80 is: 979,036.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,354.80 : 996,532.20 = 652,690.80 : x
  2. Step 2: Convert to fraction form
    664,354.80/996,532.20 = 652,690.80/x
  3. Step 3: Cross multiply
    664,354.80x = 996,532.20 × 652,690.80
  4. Step 4: Simplify right side
    664,354.80x = 650,427,398,843.76
  5. Step 5: Solve for x
    x = 650,427,398,843.76/664,354.80
  6. Step 6: Final answer
    x = 979,036.20

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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.