Home / 1,080,120.40-1,617,070.20-660,216.40

Finding the Fourth Proportional to 1,080,120.40, 1,617,070.20 and 660,216.40

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Solution

The fourth proportional to 1,080,120.40, 1,617,070.20 and 660,216.40 is: 988,423.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,080,120.40 : 1,617,070.20 = 660,216.40 : x
  2. Step 2: Convert to fraction form
    1,080,120.40/1,617,070.20 = 660,216.40/x
  3. Step 3: Cross multiply
    1,080,120.40x = 1,617,070.20 × 660,216.40
  4. Step 4: Simplify right side
    1,080,120.40x = 1,067,616,265,991.28
  5. Step 5: Solve for x
    x = 1,067,616,265,991.28/1,080,120.40
  6. Step 6: Final answer
    x = 988,423.39

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1.5x scale

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.