Home / 1,040,028.20-1,560,215.10-408,962.60

Finding the Fourth Proportional to 1,040,028.20, 1,560,215.10 and 408,962.60

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Solution

The fourth proportional to 1,040,028.20, 1,560,215.10 and 408,962.60 is: 613,511.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,040,028.20 : 1,560,215.10 = 408,962.60 : x
  2. Step 2: Convert to fraction form
    1,040,028.20/1,560,215.10 = 408,962.60/x
  3. Step 3: Cross multiply
    1,040,028.20x = 1,560,215.10 × 408,962.60
  4. Step 4: Simplify right side
    1,040,028.20x = 638,069,623,855.26
  5. Step 5: Solve for x
    x = 638,069,623,855.26/1,040,028.20
  6. Step 6: Final answer
    x = 613,511.85

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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.