Home / 1,079,418.38-1,489,728.58-626,709.38

Finding the Fourth Proportional to 1,079,418.38, 1,489,728.58 and 626,709.38

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Solution

The fourth proportional to 1,079,418.38, 1,489,728.58 and 626,709.38 is: 864,935.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,079,418.38 : 1,489,728.58 = 626,709.38 : x
  2. Step 2: Convert to fraction form
    1,079,418.38/1,489,728.58 = 626,709.38/x
  3. Step 3: Cross multiply
    1,079,418.38x = 1,489,728.58 × 626,709.38
  4. Step 4: Simplify right side
    1,079,418.38x = 933,626,865,724.66
  5. Step 5: Solve for x
    x = 933,626,865,724.66/1,079,418.38
  6. Step 6: Final answer
    x = 864,935.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.