Home / 3,120,512.10-4,680,768.15-876,650.10

Finding the Fourth Proportional to 3,120,512.10, 4,680,768.15 and 876,650.10

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Solution

The fourth proportional to 3,120,512.10, 4,680,768.15 and 876,650.10 is: 1,314,975.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,120,512.10 : 4,680,768.15 = 876,650.10 : x
  2. Step 2: Convert to fraction form
    3,120,512.10/4,680,768.15 = 876,650.10/x
  3. Step 3: Cross multiply
    3,120,512.10x = 4,680,768.15 × 876,650.10
  4. Step 4: Simplify right side
    3,120,512.10x = 4,103,395,866,774.32
  5. Step 5: Solve for x
    x = 4,103,395,866,774.32/3,120,512.10
  6. Step 6: Final answer
    x = 1,314,975.15

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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.