Home / 1,144,147.94-1,578,819.77-678,921.65

Finding the Fourth Proportional to 1,144,147.94, 1,578,819.77 and 678,921.65

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Solution

The fourth proportional to 1,144,147.94, 1,578,819.77 and 678,921.65 is: 936,849.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,144,147.94 : 1,578,819.77 = 678,921.65 : x
  2. Step 2: Convert to fraction form
    1,144,147.94/1,578,819.77 = 678,921.65/x
  3. Step 3: Cross multiply
    1,144,147.94x = 1,578,819.77 × 678,921.65
  4. Step 4: Simplify right side
    1,144,147.94x = 1,071,894,915,406.92
  5. Step 5: Solve for x
    x = 1,071,894,915,406.92/1,144,147.94
  6. Step 6: Final answer
    x = 936,849.93

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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.