Home / 3,120,954.72-4,681,594.08-991,205.52

Finding the Fourth Proportional to 3,120,954.72, 4,681,594.08 and 991,205.52

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Solution

The fourth proportional to 3,120,954.72, 4,681,594.08 and 991,205.52 is: 1,486,859.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,120,954.72 : 4,681,594.08 = 991,205.52 : x
  2. Step 2: Convert to fraction form
    3,120,954.72/4,681,594.08 = 991,205.52/x
  3. Step 3: Cross multiply
    3,120,954.72x = 4,681,594.08 × 991,205.52
  4. Step 4: Simplify right side
    3,120,954.72x = 4,640,421,894,495.32
  5. Step 5: Solve for x
    x = 4,640,421,894,495.32/3,120,954.72
  6. Step 6: Final answer
    x = 1,486,859.73

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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.