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Finding the Fourth Proportional to 500,452.20, 750,605.40 and 145,429.20

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Solution

The fourth proportional to 500,452.20, 750,605.40 and 145,429.20 is: 218,122.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,452.20 : 750,605.40 = 145,429.20 : x
  2. Step 2: Convert to fraction form
    500,452.20/750,605.40 = 145,429.20/x
  3. Step 3: Cross multiply
    500,452.20x = 750,605.40 × 145,429.20
  4. Step 4: Simplify right side
    500,452.20x = 109,159,942,837.68
  5. Step 5: Solve for x
    x = 109,159,942,837.68/500,452.20
  6. Step 6: Final answer
    x = 218,122.62

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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.