Home / 979,371.76-1,471,711.20-530,424.40

Finding the Fourth Proportional to 979,371.76, 1,471,711.20 and 530,424.40

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Solution

The fourth proportional to 979,371.76, 1,471,711.20 and 530,424.40 is: 797,073.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,371.76 : 1,471,711.20 = 530,424.40 : x
  2. Step 2: Convert to fraction form
    979,371.76/1,471,711.20 = 530,424.40/x
  3. Step 3: Cross multiply
    979,371.76x = 1,471,711.20 × 530,424.40
  4. Step 4: Simplify right side
    979,371.76x = 780,631,530,233.28
  5. Step 5: Solve for x
    x = 780,631,530,233.28/979,371.76
  6. Step 6: Final answer
    x = 797,073.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.