Home / 1,557,161.88-2,149,014.61-878,229.60

Finding the Fourth Proportional to 1,557,161.88, 2,149,014.61 and 878,229.60

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Solution

The fourth proportional to 1,557,161.88, 2,149,014.61 and 878,229.60 is: 1,212,030.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,557,161.88 : 2,149,014.61 = 878,229.60 : x
  2. Step 2: Convert to fraction form
    1,557,161.88/2,149,014.61 = 878,229.60/x
  3. Step 3: Cross multiply
    1,557,161.88x = 2,149,014.61 × 878,229.60
  4. Step 4: Simplify right side
    1,557,161.88x = 1,887,328,241,334.46
  5. Step 5: Solve for x
    x = 1,887,328,241,334.46/1,557,161.88
  6. Step 6: Final answer
    x = 1,212,030.85

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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.