Home / 1,040,206.80-1,560,310.20-639,548.40

Finding the Fourth Proportional to 1,040,206.80, 1,560,310.20 and 639,548.40

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Solution

The fourth proportional to 1,040,206.80, 1,560,310.20 and 639,548.40 is: 959,322.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,040,206.80 : 1,560,310.20 = 639,548.40 : x
  2. Step 2: Convert to fraction form
    1,040,206.80/1,560,310.20 = 639,548.40/x
  3. Step 3: Cross multiply
    1,040,206.80x = 1,560,310.20 × 639,548.40
  4. Step 4: Simplify right side
    1,040,206.80x = 997,893,891,913.68
  5. Step 5: Solve for x
    x = 997,893,891,913.68/1,040,206.80
  6. Step 6: Final answer
    x = 959,322.60

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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.