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Finding the Fourth Proportional to 486,866.52, 671,863.42 and 272,008.20

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Solution

The fourth proportional to 486,866.52, 671,863.42 and 272,008.20 is: 375,364.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,866.52 : 671,863.42 = 272,008.20 : x
  2. Step 2: Convert to fraction form
    486,866.52/671,863.42 = 272,008.20/x
  3. Step 3: Cross multiply
    486,866.52x = 671,863.42 × 272,008.20
  4. Step 4: Simplify right side
    486,866.52x = 182,752,354,800.69
  5. Step 5: Solve for x
    x = 182,752,354,800.69/486,866.52
  6. Step 6: Final answer
    x = 375,364.39

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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.