Home / 1,389,182.88-1,917,370.24-904,883.88

Finding the Fourth Proportional to 1,389,182.88, 1,917,370.24 and 904,883.88

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Solution

The fourth proportional to 1,389,182.88, 1,917,370.24 and 904,883.88 is: 1,248,933.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,389,182.88 : 1,917,370.24 = 904,883.88 : x
  2. Step 2: Convert to fraction form
    1,389,182.88/1,917,370.24 = 904,883.88/x
  3. Step 3: Cross multiply
    1,389,182.88x = 1,917,370.24 × 904,883.88
  4. Step 4: Simplify right side
    1,389,182.88x = 1,734,997,422,167.73
  5. Step 5: Solve for x
    x = 1,734,997,422,167.73/1,389,182.88
  6. Step 6: Final answer
    x = 1,248,933.78

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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.