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Finding the Fourth Proportional to 547,251.70, 820,877.55 and 494,763.70

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Solution

The fourth proportional to 547,251.70, 820,877.55 and 494,763.70 is: 742,145.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,251.70 : 820,877.55 = 494,763.70 : x
  2. Step 2: Convert to fraction form
    547,251.70/820,877.55 = 494,763.70/x
  3. Step 3: Cross multiply
    547,251.70x = 820,877.55 × 494,763.70
  4. Step 4: Simplify right side
    547,251.70x = 406,140,413,884.94
  5. Step 5: Solve for x
    x = 406,140,413,884.94/547,251.70
  6. Step 6: Final answer
    x = 742,145.55

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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.