Home / 927,764.94-1,391,917.14-388,275.78

Finding the Fourth Proportional to 927,764.94, 1,391,917.14 and 388,275.78

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Solution

The fourth proportional to 927,764.94, 1,391,917.14 and 388,275.78 is: 582,526.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    927,764.94 : 1,391,917.14 = 388,275.78 : x
  2. Step 2: Convert to fraction form
    927,764.94/1,391,917.14 = 388,275.78/x
  3. Step 3: Cross multiply
    927,764.94x = 1,391,917.14 × 388,275.78
  4. Step 4: Simplify right side
    927,764.94x = 540,447,713,228.87
  5. Step 5: Solve for x
    x = 540,447,713,228.87/927,764.94
  6. Step 6: Final answer
    x = 582,526.55

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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.