Home / 499,318.92-689,060.12-272,964.42

Finding the Fourth Proportional to 499,318.92, 689,060.12 and 272,964.42

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Solution

The fourth proportional to 499,318.92, 689,060.12 and 272,964.42 is: 376,690.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,318.92 : 689,060.12 = 272,964.42 : x
  2. Step 2: Convert to fraction form
    499,318.92/689,060.12 = 272,964.42/x
  3. Step 3: Cross multiply
    499,318.92x = 689,060.12 × 272,964.42
  4. Step 4: Simplify right side
    499,318.92x = 188,088,894,636.11
  5. Step 5: Solve for x
    x = 188,088,894,636.11/499,318.92
  6. Step 6: Final answer
    x = 376,690.90

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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.