Home / 838,671.25-1,157,414.91-631,568.89

Finding the Fourth Proportional to 838,671.25, 1,157,414.91 and 631,568.89

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Solution

The fourth proportional to 838,671.25, 1,157,414.91 and 631,568.89 is: 871,601.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,671.25 : 1,157,414.91 = 631,568.89 : x
  2. Step 2: Convert to fraction form
    838,671.25/1,157,414.91 = 631,568.89/x
  3. Step 3: Cross multiply
    838,671.25x = 1,157,414.91 × 631,568.89
  4. Step 4: Simplify right side
    838,671.25x = 730,987,249,978.15
  5. Step 5: Solve for x
    x = 730,987,249,978.15/838,671.25
  6. Step 6: Final answer
    x = 871,601.66

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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.