Home / 1,540,400.80-2,309,372.40-653,207.20

Finding the Fourth Proportional to 1,540,400.80, 2,309,372.40 and 653,207.20

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Solution

The fourth proportional to 1,540,400.80, 2,309,372.40 and 653,207.20 is: 979,289.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,540,400.80 : 2,309,372.40 = 653,207.20 : x
  2. Step 2: Convert to fraction form
    1,540,400.80/2,309,372.40 = 653,207.20/x
  3. Step 3: Cross multiply
    1,540,400.80x = 2,309,372.40 × 653,207.20
  4. Step 4: Simplify right side
    1,540,400.80x = 1,508,498,679,161.28
  5. Step 5: Solve for x
    x = 1,508,498,679,161.28/1,540,400.80
  6. Step 6: Final answer
    x = 979,289.73

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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.