Home / 499,222.38-688,927.25-272,867.88

Finding the Fourth Proportional to 499,222.38, 688,927.25 and 272,867.88

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Solution

The fourth proportional to 499,222.38, 688,927.25 and 272,867.88 is: 376,557.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,222.38 : 688,927.25 = 272,867.88 : x
  2. Step 2: Convert to fraction form
    499,222.38/688,927.25 = 272,867.88/x
  3. Step 3: Cross multiply
    499,222.38x = 688,927.25 × 272,867.88
  4. Step 4: Simplify right side
    499,222.38x = 187,986,116,817.39
  5. Step 5: Solve for x
    x = 187,986,116,817.39/499,222.38
  6. Step 6: Final answer
    x = 376,557.87

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1.5x scale

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.