Home / 1,109,986.13-1,664,687.60-478,759.61

Finding the Fourth Proportional to 1,109,986.13, 1,664,687.60 and 478,759.61

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Solution

The fourth proportional to 1,109,986.13, 1,664,687.60 and 478,759.61 is: 718,013.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,109,986.13 : 1,664,687.60 = 478,759.61 : x
  2. Step 2: Convert to fraction form
    1,109,986.13/1,664,687.60 = 478,759.61/x
  3. Step 3: Cross multiply
    1,109,986.13x = 1,664,687.60 × 478,759.61
  4. Step 4: Simplify right side
    1,109,986.13x = 796,985,189,711.11
  5. Step 5: Solve for x
    x = 796,985,189,711.11/1,109,986.13
  6. Step 6: Final answer
    x = 718,013.65

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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.