Home / 1,280,920.52-1,767,761.82-707,948.36

Finding the Fourth Proportional to 1,280,920.52, 1,767,761.82 and 707,948.36

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Solution

The fourth proportional to 1,280,920.52, 1,767,761.82 and 707,948.36 is: 977,019.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,920.52 : 1,767,761.82 = 707,948.36 : x
  2. Step 2: Convert to fraction form
    1,280,920.52/1,767,761.82 = 707,948.36/x
  3. Step 3: Cross multiply
    1,280,920.52x = 1,767,761.82 × 707,948.36
  4. Step 4: Simplify right side
    1,280,920.52x = 1,251,484,081,339.62
  5. Step 5: Solve for x
    x = 1,251,484,081,339.62/1,280,920.52
  6. Step 6: Final answer
    x = 977,019.31

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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.