Home / 499,221.38-688,925.85-272,866.88

Finding the Fourth Proportional to 499,221.38, 688,925.85 and 272,866.88

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Solution

The fourth proportional to 499,221.38, 688,925.85 and 272,866.88 is: 376,556.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,221.38 : 688,925.85 = 272,866.88 : x
  2. Step 2: Convert to fraction form
    499,221.38/688,925.85 = 272,866.88/x
  3. Step 3: Cross multiply
    499,221.38x = 688,925.85 × 272,866.88
  4. Step 4: Simplify right side
    499,221.38x = 187,985,047,240.85
  5. Step 5: Solve for x
    x = 187,985,047,240.85/499,221.38
  6. Step 6: Final answer
    x = 376,556.48

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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.