Home / 1,248,910.79-1,723,538.69-765,382.56

Finding the Fourth Proportional to 1,248,910.79, 1,723,538.69 and 765,382.56

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Solution

The fourth proportional to 1,248,910.79, 1,723,538.69 and 765,382.56 is: 1,056,253.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,248,910.79 : 1,723,538.69 = 765,382.56 : x
  2. Step 2: Convert to fraction form
    1,248,910.79/1,723,538.69 = 765,382.56/x
  3. Step 3: Cross multiply
    1,248,910.79x = 1,723,538.69 × 765,382.56
  4. Step 4: Simplify right side
    1,248,910.79x = 1,319,166,454,811.25
  5. Step 5: Solve for x
    x = 1,319,166,454,811.25/1,248,910.79
  6. Step 6: Final answer
    x = 1,056,253.55

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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.