Home / 860,249.61-1,290,386.57-327,799.76

Finding the Fourth Proportional to 860,249.61, 1,290,386.57 and 327,799.76

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Solution

The fourth proportional to 860,249.61, 1,290,386.57 and 327,799.76 is: 491,704.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,249.61 : 1,290,386.57 = 327,799.76 : x
  2. Step 2: Convert to fraction form
    860,249.61/1,290,386.57 = 327,799.76/x
  3. Step 3: Cross multiply
    860,249.61x = 1,290,386.57 × 327,799.76
  4. Step 4: Simplify right side
    860,249.61x = 422,988,399,862.29
  5. Step 5: Solve for x
    x = 422,988,399,862.29/860,249.61
  6. Step 6: Final answer
    x = 491,704.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.