Home / 498,445.87-687,846.45-283,581.31

Finding the Fourth Proportional to 498,445.87, 687,846.45 and 283,581.31

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Solution

The fourth proportional to 498,445.87, 687,846.45 and 283,581.31 is: 391,337.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,445.87 : 687,846.45 = 283,581.31 : x
  2. Step 2: Convert to fraction form
    498,445.87/687,846.45 = 283,581.31/x
  3. Step 3: Cross multiply
    498,445.87x = 687,846.45 × 283,581.31
  4. Step 4: Simplify right side
    498,445.87x = 195,060,397,369.85
  5. Step 5: Solve for x
    x = 195,060,397,369.85/498,445.87
  6. Step 6: Final answer
    x = 391,337.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.