Home / 3,121,661.04-4,680,340.08-1,228,619.76

Finding the Fourth Proportional to 3,121,661.04, 4,680,340.08 and 1,228,619.76

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Solution

The fourth proportional to 3,121,661.04, 4,680,340.08 and 1,228,619.76 is: 1,842,082.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,121,661.04 : 4,680,340.08 = 1,228,619.76 : x
  2. Step 2: Convert to fraction form
    3,121,661.04/4,680,340.08 = 1,228,619.76/x
  3. Step 3: Cross multiply
    3,121,661.04x = 4,680,340.08 × 1,228,619.76
  4. Step 4: Simplify right side
    3,121,661.04x = 5,750,358,305,807.98
  5. Step 5: Solve for x
    x = 5,750,358,305,807.98/3,121,661.04
  6. Step 6: Final answer
    x = 1,842,082.86

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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.