Home / 2,657,143.20-3,986,103.60-859,720.80

Finding the Fourth Proportional to 2,657,143.20, 3,986,103.60 and 859,720.80

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Solution

The fourth proportional to 2,657,143.20, 3,986,103.60 and 859,720.80 is: 1,289,707.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,657,143.20 : 3,986,103.60 = 859,720.80 : x
  2. Step 2: Convert to fraction form
    2,657,143.20/3,986,103.60 = 859,720.80/x
  3. Step 3: Cross multiply
    2,657,143.20x = 3,986,103.60 × 859,720.80
  4. Step 4: Simplify right side
    2,657,143.20x = 3,426,936,175,874.88
  5. Step 5: Solve for x
    x = 3,426,936,175,874.88/2,657,143.20
  6. Step 6: Final answer
    x = 1,289,707.00

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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.