Home / 1,280,966.68-1,767,680.92-764,804.61

Finding the Fourth Proportional to 1,280,966.68, 1,767,680.92 and 764,804.61

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Solution

The fourth proportional to 1,280,966.68, 1,767,680.92 and 764,804.61 is: 1,055,398.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,966.68 : 1,767,680.92 = 764,804.61 : x
  2. Step 2: Convert to fraction form
    1,280,966.68/1,767,680.92 = 764,804.61/x
  3. Step 3: Cross multiply
    1,280,966.68x = 1,767,680.92 × 764,804.61
  4. Step 4: Simplify right side
    1,280,966.68x = 1,351,930,516,625.04
  5. Step 5: Solve for x
    x = 1,351,930,516,625.04/1,280,966.68
  6. Step 6: Final answer
    x = 1,055,398.66

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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.