Home / 1,187,335.68-1,638,691.20-734,772.48

Finding the Fourth Proportional to 1,187,335.68, 1,638,691.20 and 734,772.48

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Solution

The fourth proportional to 1,187,335.68, 1,638,691.20 and 734,772.48 is: 1,014,089.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,335.68 : 1,638,691.20 = 734,772.48 : x
  2. Step 2: Convert to fraction form
    1,187,335.68/1,638,691.20 = 734,772.48/x
  3. Step 3: Cross multiply
    1,187,335.68x = 1,638,691.20 × 734,772.48
  4. Step 4: Simplify right side
    1,187,335.68x = 1,204,065,196,978.18
  5. Step 5: Solve for x
    x = 1,204,065,196,978.18/1,187,335.68
  6. Step 6: Final answer
    x = 1,014,089.96

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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.