Home / 979,369.76-1,471,708.20-530,422.40

Finding the Fourth Proportional to 979,369.76, 1,471,708.20 and 530,422.40

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Solution

The fourth proportional to 979,369.76, 1,471,708.20 and 530,422.40 is: 797,070.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,369.76 : 1,471,708.20 = 530,422.40 : x
  2. Step 2: Convert to fraction form
    979,369.76/1,471,708.20 = 530,422.40/x
  3. Step 3: Cross multiply
    979,369.76x = 1,471,708.20 × 530,422.40
  4. Step 4: Simplify right side
    979,369.76x = 780,626,995,543.68
  5. Step 5: Solve for x
    x = 780,626,995,543.68/979,369.76
  6. Step 6: Final answer
    x = 797,070.76

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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.