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Finding the Fourth Proportional to 363,446.40, 544,586.40 and 342,451.20

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Solution

The fourth proportional to 363,446.40, 544,586.40 and 342,451.20 is: 513,127.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,446.40 : 544,586.40 = 342,451.20 : x
  2. Step 2: Convert to fraction form
    363,446.40/544,586.40 = 342,451.20/x
  3. Step 3: Cross multiply
    363,446.40x = 544,586.40 × 342,451.20
  4. Step 4: Simplify right side
    363,446.40x = 186,494,266,183.68
  5. Step 5: Solve for x
    x = 186,494,266,183.68/363,446.40
  6. Step 6: Final answer
    x = 513,127.29

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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.