Home / 486,876.12-671,884.50-272,053.20

Finding the Fourth Proportional to 486,876.12, 671,884.50 and 272,053.20

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Solution

The fourth proportional to 486,876.12, 671,884.50 and 272,053.20 is: 375,430.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,876.12 : 671,884.50 = 272,053.20 : x
  2. Step 2: Convert to fraction form
    486,876.12/671,884.50 = 272,053.20/x
  3. Step 3: Cross multiply
    486,876.12x = 671,884.50 × 272,053.20
  4. Step 4: Simplify right side
    486,876.12x = 182,788,328,255.40
  5. Step 5: Solve for x
    x = 182,788,328,255.40/486,876.12
  6. Step 6: Final answer
    x = 375,430.88

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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.