Home / 498,299.58-687,643.83-271,946.70

Finding the Fourth Proportional to 498,299.58, 687,643.83 and 271,946.70

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Solution

The fourth proportional to 498,299.58, 687,643.83 and 271,946.70 is: 375,281.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,299.58 : 687,643.83 = 271,946.70 : x
  2. Step 2: Convert to fraction form
    498,299.58/687,643.83 = 271,946.70/x
  3. Step 3: Cross multiply
    498,299.58x = 687,643.83 × 271,946.70
  4. Step 4: Simplify right side
    498,299.58x = 187,002,470,343.86
  5. Step 5: Solve for x
    x = 187,002,470,343.86/498,299.58
  6. Step 6: Final answer
    x = 375,281.21

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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.