Home / 1,441,187.12-1,988,634.97-821,008.60

Finding the Fourth Proportional to 1,441,187.12, 1,988,634.97 and 821,008.60

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Solution

The fourth proportional to 1,441,187.12, 1,988,634.97 and 821,008.60 is: 1,132,876.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,441,187.12 : 1,988,634.97 = 821,008.60 : x
  2. Step 2: Convert to fraction form
    1,441,187.12/1,988,634.97 = 821,008.60/x
  3. Step 3: Cross multiply
    1,441,187.12x = 1,988,634.97 × 821,008.60
  4. Step 4: Simplify right side
    1,441,187.12x = 1,632,686,412,630.74
  5. Step 5: Solve for x
    x = 1,632,686,412,630.74/1,441,187.12
  6. Step 6: Final answer
    x = 1,132,876.08

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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.