Home / 486,890.40-671,841.96-272,003.76

Finding the Fourth Proportional to 486,890.40, 671,841.96 and 272,003.76

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Solution

The fourth proportional to 486,890.40, 671,841.96 and 272,003.76 is: 375,327.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,890.40 : 671,841.96 = 272,003.76 : x
  2. Step 2: Convert to fraction form
    486,890.40/671,841.96 = 272,003.76/x
  3. Step 3: Cross multiply
    486,890.40x = 671,841.96 × 272,003.76
  4. Step 4: Simplify right side
    486,890.40x = 182,743,539,245.77
  5. Step 5: Solve for x
    x = 182,743,539,245.77/486,890.40
  6. Step 6: Final answer
    x = 375,327.88

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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.