Home / 918,000.45-1,377,000.68-244,080.45

Finding the Fourth Proportional to 918,000.45, 1,377,000.68 and 244,080.45

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Solution

The fourth proportional to 918,000.45, 1,377,000.68 and 244,080.45 is: 366,120.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,000.45 : 1,377,000.68 = 244,080.45 : x
  2. Step 2: Convert to fraction form
    918,000.45/1,377,000.68 = 244,080.45/x
  3. Step 3: Cross multiply
    918,000.45x = 1,377,000.68 × 244,080.45
  4. Step 4: Simplify right side
    918,000.45x = 336,098,944,404.30
  5. Step 5: Solve for x
    x = 336,098,944,404.30/918,000.45
  6. Step 6: Final answer
    x = 366,120.68

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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.