Home / 3,121,025.80-4,681,538.70-876,872.20

Finding the Fourth Proportional to 3,121,025.80, 4,681,538.70 and 876,872.20

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Solution

The fourth proportional to 3,121,025.80, 4,681,538.70 and 876,872.20 is: 1,315,308.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,121,025.80 : 4,681,538.70 = 876,872.20 : x
  2. Step 2: Convert to fraction form
    3,121,025.80/4,681,538.70 = 876,872.20/x
  3. Step 3: Cross multiply
    3,121,025.80x = 4,681,538.70 × 876,872.20
  4. Step 4: Simplify right side
    3,121,025.80x = 4,105,111,139,254.14
  5. Step 5: Solve for x
    x = 4,105,111,139,254.14/3,121,025.80
  6. Step 6: Final answer
    x = 1,315,308.30

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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.