Home / 1,280,372.49-1,766,984.91-707,400.36

Finding the Fourth Proportional to 1,280,372.49, 1,766,984.91 and 707,400.36

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Solution

The fourth proportional to 1,280,372.49, 1,766,984.91 and 707,400.36 is: 976,251.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,372.49 : 1,766,984.91 = 707,400.36 : x
  2. Step 2: Convert to fraction form
    1,280,372.49/1,766,984.91 = 707,400.36/x
  3. Step 3: Cross multiply
    1,280,372.49x = 1,766,984.91 × 707,400.36
  4. Step 4: Simplify right side
    1,280,372.49x = 1,249,965,761,448.57
  5. Step 5: Solve for x
    x = 1,249,965,761,448.57/1,280,372.49
  6. Step 6: Final answer
    x = 976,251.65

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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.