Home / 3,120,443.80-4,680,665.70-876,962.20

Finding the Fourth Proportional to 3,120,443.80, 4,680,665.70 and 876,962.20

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Solution

The fourth proportional to 3,120,443.80, 4,680,665.70 and 876,962.20 is: 1,315,443.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,120,443.80 : 4,680,665.70 = 876,962.20 : x
  2. Step 2: Convert to fraction form
    3,120,443.80/4,680,665.70 = 876,962.20/x
  3. Step 3: Cross multiply
    3,120,443.80x = 4,680,665.70 × 876,962.20
  4. Step 4: Simplify right side
    3,120,443.80x = 4,104,766,889,736.54
  5. Step 5: Solve for x
    x = 4,104,766,889,736.54/3,120,443.80
  6. Step 6: Final answer
    x = 1,315,443.30

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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.