Home / 1,040,169.60-1,560,254.40-639,511.20

Finding the Fourth Proportional to 1,040,169.60, 1,560,254.40 and 639,511.20

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Solution

The fourth proportional to 1,040,169.60, 1,560,254.40 and 639,511.20 is: 959,266.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,040,169.60 : 1,560,254.40 = 639,511.20 : x
  2. Step 2: Convert to fraction form
    1,040,169.60/1,560,254.40 = 639,511.20/x
  3. Step 3: Cross multiply
    1,040,169.60x = 1,560,254.40 × 639,511.20
  4. Step 4: Simplify right side
    1,040,169.60x = 997,800,163,649.28
  5. Step 5: Solve for x
    x = 997,800,163,649.28/1,040,169.60
  6. Step 6: Final answer
    x = 959,266.80

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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.