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Finding the Fourth Proportional to 659,311.30, 988,966.95 and 446,734.90

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Solution

The fourth proportional to 659,311.30, 988,966.95 and 446,734.90 is: 670,102.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,311.30 : 988,966.95 = 446,734.90 : x
  2. Step 2: Convert to fraction form
    659,311.30/988,966.95 = 446,734.90/x
  3. Step 3: Cross multiply
    659,311.30x = 988,966.95 × 446,734.90
  4. Step 4: Simplify right side
    659,311.30x = 441,806,051,511.56
  5. Step 5: Solve for x
    x = 441,806,051,511.56/659,311.30
  6. Step 6: Final answer
    x = 670,102.35

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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.