Home / 1,280,616.30-1,767,251.12-707,656.47

Finding the Fourth Proportional to 1,280,616.30, 1,767,251.12 and 707,656.47

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Solution

The fourth proportional to 1,280,616.30, 1,767,251.12 and 707,656.47 is: 976,566.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,616.30 : 1,767,251.12 = 707,656.47 : x
  2. Step 2: Convert to fraction form
    1,280,616.30/1,767,251.12 = 707,656.47/x
  3. Step 3: Cross multiply
    1,280,616.30x = 1,767,251.12 × 707,656.47
  4. Step 4: Simplify right side
    1,280,616.30x = 1,250,606,689,182.75
  5. Step 5: Solve for x
    x = 1,250,606,689,182.75/1,280,616.30
  6. Step 6: Final answer
    x = 976,566.27

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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.