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Finding the Fourth Proportional to 573,574.40, 859,972.80 and 218,535.20

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Solution

The fourth proportional to 573,574.40, 859,972.80 and 218,535.20 is: 327,654.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,574.40 : 859,972.80 = 218,535.20 : x
  2. Step 2: Convert to fraction form
    573,574.40/859,972.80 = 218,535.20/x
  3. Step 3: Cross multiply
    573,574.40x = 859,972.80 × 218,535.20
  4. Step 4: Simplify right side
    573,574.40x = 187,934,327,842.56
  5. Step 5: Solve for x
    x = 187,934,327,842.56/573,574.40
  6. Step 6: Final answer
    x = 327,654.66

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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.