Home / 1,280,642.04-1,767,286.62-707,682.21

Finding the Fourth Proportional to 1,280,642.04, 1,767,286.62 and 707,682.21

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Solution

The fourth proportional to 1,280,642.04, 1,767,286.62 and 707,682.21 is: 976,601.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,642.04 : 1,767,286.62 = 707,682.21 : x
  2. Step 2: Convert to fraction form
    1,280,642.04/1,767,286.62 = 707,682.21/x
  3. Step 3: Cross multiply
    1,280,642.04x = 1,767,286.62 × 707,682.21
  4. Step 4: Simplify right side
    1,280,642.04x = 1,250,677,300,945.03
  5. Step 5: Solve for x
    x = 1,250,677,300,945.03/1,280,642.04
  6. Step 6: Final answer
    x = 976,601.78

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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.