Home / 1,821,120.33-2,513,080.19-1,005,306.50

Finding the Fourth Proportional to 1,821,120.33, 2,513,080.19 and 1,005,306.50

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Solution

The fourth proportional to 1,821,120.33, 2,513,080.19 and 1,005,306.50 is: 1,387,286.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,821,120.33 : 2,513,080.19 = 1,005,306.50 : x
  2. Step 2: Convert to fraction form
    1,821,120.33/2,513,080.19 = 1,005,306.50/x
  3. Step 3: Cross multiply
    1,821,120.33x = 2,513,080.19 × 1,005,306.50
  4. Step 4: Simplify right side
    1,821,120.33x = 2,526,415,845,630.25
  5. Step 5: Solve for x
    x = 2,526,415,845,630.25/1,821,120.33
  6. Step 6: Final answer
    x = 1,387,286.61

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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.