Home / 1,080,122.40-1,619,989.20-680,047.20

Finding the Fourth Proportional to 1,080,122.40, 1,619,989.20 and 680,047.20

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Solution

The fourth proportional to 1,080,122.40, 1,619,989.20 and 680,047.20 is: 1,019,948.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,080,122.40 : 1,619,989.20 = 680,047.20 : x
  2. Step 2: Convert to fraction form
    1,080,122.40/1,619,989.20 = 680,047.20/x
  3. Step 3: Cross multiply
    1,080,122.40x = 1,619,989.20 × 680,047.20
  4. Step 4: Simplify right side
    1,080,122.40x = 1,101,669,119,490.24
  5. Step 5: Solve for x
    x = 1,101,669,119,490.24/1,080,122.40
  6. Step 6: Final answer
    x = 1,019,948.41

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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.