Home / 579,631.10-868,409.85-496,687.10

Finding the Fourth Proportional to 579,631.10, 868,409.85 and 496,687.10

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Solution

The fourth proportional to 579,631.10, 868,409.85 and 496,687.10 is: 744,142.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,631.10 : 868,409.85 = 496,687.10 : x
  2. Step 2: Convert to fraction form
    579,631.10/868,409.85 = 496,687.10/x
  3. Step 3: Cross multiply
    579,631.10x = 868,409.85 × 496,687.10
  4. Step 4: Simplify right side
    579,631.10x = 431,327,970,007.94
  5. Step 5: Solve for x
    x = 431,327,970,007.94/579,631.10
  6. Step 6: Final answer
    x = 744,142.21

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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.