Home / 705,082.68-1,055,608.74-660,390.12

Finding the Fourth Proportional to 705,082.68, 1,055,608.74 and 660,390.12

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Solution

The fourth proportional to 705,082.68, 1,055,608.74 and 660,390.12 is: 988,697.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,082.68 : 1,055,608.74 = 660,390.12 : x
  2. Step 2: Convert to fraction form
    705,082.68/1,055,608.74 = 660,390.12/x
  3. Step 3: Cross multiply
    705,082.68x = 1,055,608.74 × 660,390.12
  4. Step 4: Simplify right side
    705,082.68x = 697,113,582,481.65
  5. Step 5: Solve for x
    x = 697,113,582,481.65/705,082.68
  6. Step 6: Final answer
    x = 988,697.64

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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.