Home / 2,178,277.20-3,267,415.80-1,380,459.60

Finding the Fourth Proportional to 2,178,277.20, 3,267,415.80 and 1,380,459.60

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Solution

The fourth proportional to 2,178,277.20, 3,267,415.80 and 1,380,459.60 is: 2,070,689.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,178,277.20 : 3,267,415.80 = 1,380,459.60 : x
  2. Step 2: Convert to fraction form
    2,178,277.20/3,267,415.80 = 1,380,459.60/x
  3. Step 3: Cross multiply
    2,178,277.20x = 3,267,415.80 × 1,380,459.60
  4. Step 4: Simplify right side
    2,178,277.20x = 4,510,535,508,301.68
  5. Step 5: Solve for x
    x = 4,510,535,508,301.68/2,178,277.20
  6. Step 6: Final answer
    x = 2,070,689.40

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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.