Home / 1,040,784.90-1,560,140.55-478,839.30

Finding the Fourth Proportional to 1,040,784.90, 1,560,140.55 and 478,839.30

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Solution

The fourth proportional to 1,040,784.90, 1,560,140.55 and 478,839.30 is: 717,781.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,040,784.90 : 1,560,140.55 = 478,839.30 : x
  2. Step 2: Convert to fraction form
    1,040,784.90/1,560,140.55 = 478,839.30/x
  3. Step 3: Cross multiply
    1,040,784.90x = 1,560,140.55 × 478,839.30
  4. Step 4: Simplify right side
    1,040,784.90x = 747,056,608,863.62
  5. Step 5: Solve for x
    x = 747,056,608,863.62/1,040,784.90
  6. Step 6: Final answer
    x = 717,781.94

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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.