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Finding the Fourth Proportional to 492,774.30, 739,161.45 and 442,910.70

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Solution

The fourth proportional to 492,774.30, 739,161.45 and 442,910.70 is: 664,366.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,774.30 : 739,161.45 = 442,910.70 : x
  2. Step 2: Convert to fraction form
    492,774.30/739,161.45 = 442,910.70/x
  3. Step 3: Cross multiply
    492,774.30x = 739,161.45 × 442,910.70
  4. Step 4: Simplify right side
    492,774.30x = 327,382,515,232.52
  5. Step 5: Solve for x
    x = 327,382,515,232.52/492,774.30
  6. Step 6: Final answer
    x = 664,366.05

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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.