Home / 3,120,948.72-4,681,585.08-991,199.52

Finding the Fourth Proportional to 3,120,948.72, 4,681,585.08 and 991,199.52

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Solution

The fourth proportional to 3,120,948.72, 4,681,585.08 and 991,199.52 is: 1,486,850.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,120,948.72 : 4,681,585.08 = 991,199.52 : x
  2. Step 2: Convert to fraction form
    3,120,948.72/4,681,585.08 = 991,199.52/x
  3. Step 3: Cross multiply
    3,120,948.72x = 4,681,585.08 × 991,199.52
  4. Step 4: Simplify right side
    3,120,948.72x = 4,640,384,884,135.16
  5. Step 5: Solve for x
    x = 4,640,384,884,135.16/3,120,948.72
  6. Step 6: Final answer
    x = 1,486,850.73

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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.