Home / 498,995.24-688,623.78-272,655.72

Finding the Fourth Proportional to 498,995.24, 688,623.78 and 272,655.72

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Solution

The fourth proportional to 498,995.24, 688,623.78 and 272,655.72 is: 376,270.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,995.24 : 688,623.78 = 272,655.72 : x
  2. Step 2: Convert to fraction form
    498,995.24/688,623.78 = 272,655.72/x
  3. Step 3: Cross multiply
    498,995.24x = 688,623.78 × 272,655.72
  4. Step 4: Simplify right side
    498,995.24x = 187,757,212,545.02
  5. Step 5: Solve for x
    x = 187,757,212,545.02/498,995.24
  6. Step 6: Final answer
    x = 376,270.55

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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.