Home / 498,576.88-688,035.72-272,222.36

Finding the Fourth Proportional to 498,576.88, 688,035.72 and 272,222.36

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Solution

The fourth proportional to 498,576.88, 688,035.72 and 272,222.36 is: 375,666.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,576.88 : 688,035.72 = 272,222.36 : x
  2. Step 2: Convert to fraction form
    498,576.88/688,035.72 = 272,222.36/x
  3. Step 3: Cross multiply
    498,576.88x = 688,035.72 × 272,222.36
  4. Step 4: Simplify right side
    498,576.88x = 187,298,707,462.70
  5. Step 5: Solve for x
    x = 187,298,707,462.70/498,576.88
  6. Step 6: Final answer
    x = 375,666.65

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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.