Home / 578,857.20-868,285.80-508,873.20

Finding the Fourth Proportional to 578,857.20, 868,285.80 and 508,873.20

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Solution

The fourth proportional to 578,857.20, 868,285.80 and 508,873.20 is: 763,309.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,857.20 : 868,285.80 = 508,873.20 : x
  2. Step 2: Convert to fraction form
    578,857.20/868,285.80 = 508,873.20/x
  3. Step 3: Cross multiply
    578,857.20x = 868,285.80 × 508,873.20
  4. Step 4: Simplify right side
    578,857.20x = 441,847,373,560.56
  5. Step 5: Solve for x
    x = 441,847,373,560.56/578,857.20
  6. Step 6: Final answer
    x = 763,309.80

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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.