Home / 1,280,620.87-1,767,257.42-707,661.04

Finding the Fourth Proportional to 1,280,620.87, 1,767,257.42 and 707,661.04

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Solution

The fourth proportional to 1,280,620.87, 1,767,257.42 and 707,661.04 is: 976,572.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,620.87 : 1,767,257.42 = 707,661.04 : x
  2. Step 2: Convert to fraction form
    1,280,620.87/1,767,257.42 = 707,661.04/x
  3. Step 3: Cross multiply
    1,280,620.87x = 1,767,257.42 × 707,661.04
  4. Step 4: Simplify right side
    1,280,620.87x = 1,250,619,223,784.92
  5. Step 5: Solve for x
    x = 1,250,619,223,784.92/1,280,620.87
  6. Step 6: Final answer
    x = 976,572.58

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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.