Home / 499,318.88-689,060.06-272,964.38

Finding the Fourth Proportional to 499,318.88, 689,060.06 and 272,964.38

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Solution

The fourth proportional to 499,318.88, 689,060.06 and 272,964.38 is: 376,690.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,318.88 : 689,060.06 = 272,964.38 : x
  2. Step 2: Convert to fraction form
    499,318.88/689,060.06 = 272,964.38/x
  3. Step 3: Cross multiply
    499,318.88x = 689,060.06 × 272,964.38
  4. Step 4: Simplify right side
    499,318.88x = 188,088,847,250.54
  5. Step 5: Solve for x
    x = 188,088,847,250.54/499,318.88
  6. Step 6: Final answer
    x = 376,690.84

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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.