Home / 1,396,479.78-1,927,143.36-792,867.78

Finding the Fourth Proportional to 1,396,479.78, 1,927,143.36 and 792,867.78

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Solution

The fourth proportional to 1,396,479.78, 1,927,143.36 and 792,867.78 is: 1,094,158.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,396,479.78 : 1,927,143.36 = 792,867.78 : x
  2. Step 2: Convert to fraction form
    1,396,479.78/1,927,143.36 = 792,867.78/x
  3. Step 3: Cross multiply
    1,396,479.78x = 1,927,143.36 × 792,867.78
  4. Step 4: Simplify right side
    1,396,479.78x = 1,527,969,877,584.94
  5. Step 5: Solve for x
    x = 1,527,969,877,584.94/1,396,479.78
  6. Step 6: Final answer
    x = 1,094,158.25

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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.