Home / 869,545.40-1,304,318.10-238,458.20

Finding the Fourth Proportional to 869,545.40, 1,304,318.10 and 238,458.20

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Solution

The fourth proportional to 869,545.40, 1,304,318.10 and 238,458.20 is: 357,687.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,545.40 : 1,304,318.10 = 238,458.20 : x
  2. Step 2: Convert to fraction form
    869,545.40/1,304,318.10 = 238,458.20/x
  3. Step 3: Cross multiply
    869,545.40x = 1,304,318.10 × 238,458.20
  4. Step 4: Simplify right side
    869,545.40x = 311,025,346,353.42
  5. Step 5: Solve for x
    x = 311,025,346,353.42/869,545.40
  6. Step 6: Final answer
    x = 357,687.30

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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.