Home / 3,121,340.40-4,680,109.80-1,225,810.80

Finding the Fourth Proportional to 3,121,340.40, 4,680,109.80 and 1,225,810.80

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Solution

The fourth proportional to 3,121,340.40, 4,680,109.80 and 1,225,810.80 is: 1,837,969.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,121,340.40 : 4,680,109.80 = 1,225,810.80 : x
  2. Step 2: Convert to fraction form
    3,121,340.40/4,680,109.80 = 1,225,810.80/x
  3. Step 3: Cross multiply
    3,121,340.40x = 4,680,109.80 × 1,225,810.80
  4. Step 4: Simplify right side
    3,121,340.40x = 5,736,929,138,025.84
  5. Step 5: Solve for x
    x = 5,736,929,138,025.84/3,121,340.40
  6. Step 6: Final answer
    x = 1,837,969.72

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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.