Home / 2,655,206.80-3,982,810.20-762,139.60

Finding the Fourth Proportional to 2,655,206.80, 3,982,810.20 and 762,139.60

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Solution

The fourth proportional to 2,655,206.80, 3,982,810.20 and 762,139.60 is: 1,143,209.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,655,206.80 : 3,982,810.20 = 762,139.60 : x
  2. Step 2: Convert to fraction form
    2,655,206.80/3,982,810.20 = 762,139.60/x
  3. Step 3: Cross multiply
    2,655,206.80x = 3,982,810.20 × 762,139.60
  4. Step 4: Simplify right side
    2,655,206.80x = 3,035,457,372,703.92
  5. Step 5: Solve for x
    x = 3,035,457,372,703.92/2,655,206.80
  6. Step 6: Final answer
    x = 1,143,209.40

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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.