Home / 486,988.52-672,000.44-272,098.76

Finding the Fourth Proportional to 486,988.52, 672,000.44 and 272,098.76

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Solution

The fourth proportional to 486,988.52, 672,000.44 and 272,098.76 is: 375,471.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,988.52 : 672,000.44 = 272,098.76 : x
  2. Step 2: Convert to fraction form
    486,988.52/672,000.44 = 272,098.76/x
  3. Step 3: Cross multiply
    486,988.52x = 672,000.44 × 272,098.76
  4. Step 4: Simplify right side
    486,988.52x = 182,850,486,443.45
  5. Step 5: Solve for x
    x = 182,850,486,443.45/486,988.52
  6. Step 6: Final answer
    x = 375,471.86

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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.