Home / 1,351,625.56-1,865,042.61-820,920.62

Finding the Fourth Proportional to 1,351,625.56, 1,865,042.61 and 820,920.62

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Solution

The fourth proportional to 1,351,625.56, 1,865,042.61 and 820,920.62 is: 1,132,748.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,351,625.56 : 1,865,042.61 = 820,920.62 : x
  2. Step 2: Convert to fraction form
    1,351,625.56/1,865,042.61 = 820,920.62/x
  3. Step 3: Cross multiply
    1,351,625.56x = 1,865,042.61 × 820,920.62
  4. Step 4: Simplify right side
    1,351,625.56x = 1,531,051,943,468.68
  5. Step 5: Solve for x
    x = 1,531,051,943,468.68/1,351,625.56
  6. Step 6: Final answer
    x = 1,132,748.59

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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.