Home / 1,280,220.80-1,766,691.42-707,223.56

Finding the Fourth Proportional to 1,280,220.80, 1,766,691.42 and 707,223.56

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Solution

The fourth proportional to 1,280,220.80, 1,766,691.42 and 707,223.56 is: 975,961.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,220.80 : 1,766,691.42 = 707,223.56 : x
  2. Step 2: Convert to fraction form
    1,280,220.80/1,766,691.42 = 707,223.56/x
  3. Step 3: Cross multiply
    1,280,220.80x = 1,766,691.42 × 707,223.56
  4. Step 4: Simplify right side
    1,280,220.80x = 1,249,445,795,473.86
  5. Step 5: Solve for x
    x = 1,249,445,795,473.86/1,280,220.80
  6. Step 6: Final answer
    x = 975,961.17

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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.