Home / 3,985,720.80-5,979,358.80-1,711,240.80

Finding the Fourth Proportional to 3,985,720.80, 5,979,358.80 and 1,711,240.80

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Solution

The fourth proportional to 3,985,720.80, 5,979,358.80 and 1,711,240.80 is: 2,567,195.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,985,720.80 : 5,979,358.80 = 1,711,240.80 : x
  2. Step 2: Convert to fraction form
    3,985,720.80/5,979,358.80 = 1,711,240.80/x
  3. Step 3: Cross multiply
    3,985,720.80x = 5,979,358.80 × 1,711,240.80
  4. Step 4: Simplify right side
    3,985,720.80x = 10,232,122,736,399.04
  5. Step 5: Solve for x
    x = 10,232,122,736,399.04/3,985,720.80
  6. Step 6: Final answer
    x = 2,567,195.06

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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.