Home / 1,443,073.76-1,991,306.19-976,979.53

Finding the Fourth Proportional to 1,443,073.76, 1,991,306.19 and 976,979.53

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Solution

The fourth proportional to 1,443,073.76, 1,991,306.19 and 976,979.53 is: 1,348,139.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,443,073.76 : 1,991,306.19 = 976,979.53 : x
  2. Step 2: Convert to fraction form
    1,443,073.76/1,991,306.19 = 976,979.53/x
  3. Step 3: Cross multiply
    1,443,073.76x = 1,991,306.19 × 976,979.53
  4. Step 4: Simplify right side
    1,443,073.76x = 1,945,465,385,592.29
  5. Step 5: Solve for x
    x = 1,945,465,385,592.29/1,443,073.76
  6. Step 6: Final answer
    x = 1,348,139.95

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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.