Home / 499,218.80-688,920.72-272,865.92

Finding the Fourth Proportional to 499,218.80, 688,920.72 and 272,865.92

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Solution

The fourth proportional to 499,218.80, 688,920.72 and 272,865.92 is: 376,554.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,218.80 : 688,920.72 = 272,865.92 : x
  2. Step 2: Convert to fraction form
    499,218.80/688,920.72 = 272,865.92/x
  3. Step 3: Cross multiply
    499,218.80x = 688,920.72 × 272,865.92
  4. Step 4: Simplify right side
    499,218.80x = 187,982,986,069.86
  5. Step 5: Solve for x
    x = 187,982,986,069.86/499,218.80
  6. Step 6: Final answer
    x = 376,554.30

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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.