Home / 1,187,123.12-1,638,797.88-677,726.96

Finding the Fourth Proportional to 1,187,123.12, 1,638,797.88 and 677,726.96

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Solution

The fourth proportional to 1,187,123.12, 1,638,797.88 and 677,726.96 is: 935,587.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,123.12 : 1,638,797.88 = 677,726.96 : x
  2. Step 2: Convert to fraction form
    1,187,123.12/1,638,797.88 = 677,726.96/x
  3. Step 3: Cross multiply
    1,187,123.12x = 1,638,797.88 × 677,726.96
  4. Step 4: Simplify right side
    1,187,123.12x = 1,110,657,505,266.84
  5. Step 5: Solve for x
    x = 1,110,657,505,266.84/1,187,123.12
  6. Step 6: Final answer
    x = 935,587.46

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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.