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Finding the Fourth Proportional to 409,747.40, 614,621.10 and 252,064.70

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Solution

The fourth proportional to 409,747.40, 614,621.10 and 252,064.70 is: 378,097.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,747.40 : 614,621.10 = 252,064.70 : x
  2. Step 2: Convert to fraction form
    409,747.40/614,621.10 = 252,064.70/x
  3. Step 3: Cross multiply
    409,747.40x = 614,621.10 × 252,064.70
  4. Step 4: Simplify right side
    409,747.40x = 154,924,283,185.17
  5. Step 5: Solve for x
    x = 154,924,283,185.17/409,747.40
  6. Step 6: Final answer
    x = 378,097.05

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Similar ratio
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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.