Home / 486,888.40-671,839.20-272,001.76

Finding the Fourth Proportional to 486,888.40, 671,839.20 and 272,001.76

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Solution

The fourth proportional to 486,888.40, 671,839.20 and 272,001.76 is: 375,325.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,888.40 : 671,839.20 = 272,001.76 : x
  2. Step 2: Convert to fraction form
    486,888.40/671,839.20 = 272,001.76/x
  3. Step 3: Cross multiply
    486,888.40x = 671,839.20 × 272,001.76
  4. Step 4: Simplify right side
    486,888.40x = 182,741,444,836.99
  5. Step 5: Solve for x
    x = 182,741,444,836.99/486,888.40
  6. Step 6: Final answer
    x = 375,325.12

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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.