Home / 1,189,736.20-1,780,959.30-655,622.20

Finding the Fourth Proportional to 1,189,736.20, 1,780,959.30 and 655,622.20

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Solution

The fourth proportional to 1,189,736.20, 1,780,959.30 and 655,622.20 is: 981,424.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,736.20 : 1,780,959.30 = 655,622.20 : x
  2. Step 2: Convert to fraction form
    1,189,736.20/1,780,959.30 = 655,622.20/x
  3. Step 3: Cross multiply
    1,189,736.20x = 1,780,959.30 × 655,622.20
  4. Step 4: Simplify right side
    1,189,736.20x = 1,167,636,454,376.46
  5. Step 5: Solve for x
    x = 1,167,636,454,376.46/1,189,736.20
  6. Step 6: Final answer
    x = 981,424.67

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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.