Home / 705,116.76-1,055,336.20-642,082.56

Finding the Fourth Proportional to 705,116.76, 1,055,336.20 and 642,082.56

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Solution

The fourth proportional to 705,116.76, 1,055,336.20 and 642,082.56 is: 960,993.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,116.76 : 1,055,336.20 = 642,082.56 : x
  2. Step 2: Convert to fraction form
    705,116.76/1,055,336.20 = 642,082.56/x
  3. Step 3: Cross multiply
    705,116.76x = 1,055,336.20 × 642,082.56
  4. Step 4: Simplify right side
    705,116.76x = 677,612,968,956.67
  5. Step 5: Solve for x
    x = 677,612,968,956.67/705,116.76
  6. Step 6: Final answer
    x = 960,993.99

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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.