Home / 1,040,044.20-1,560,239.10-408,978.60

Finding the Fourth Proportional to 1,040,044.20, 1,560,239.10 and 408,978.60

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Solution

The fourth proportional to 1,040,044.20, 1,560,239.10 and 408,978.60 is: 613,535.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,040,044.20 : 1,560,239.10 = 408,978.60 : x
  2. Step 2: Convert to fraction form
    1,040,044.20/1,560,239.10 = 408,978.60/x
  3. Step 3: Cross multiply
    1,040,044.20x = 1,560,239.10 × 408,978.60
  4. Step 4: Simplify right side
    1,040,044.20x = 638,104,402,783.26
  5. Step 5: Solve for x
    x = 638,104,402,783.26/1,040,044.20
  6. Step 6: Final answer
    x = 613,535.85

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1.5x scale

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.