Home / 860,512.95-1,290,850.37-253,301.66

Finding the Fourth Proportional to 860,512.95, 1,290,850.37 and 253,301.66

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Solution

The fourth proportional to 860,512.95, 1,290,850.37 and 253,301.66 is: 379,976.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,512.95 : 1,290,850.37 = 253,301.66 : x
  2. Step 2: Convert to fraction form
    860,512.95/1,290,850.37 = 253,301.66/x
  3. Step 3: Cross multiply
    860,512.95x = 1,290,850.37 × 253,301.66
  4. Step 4: Simplify right side
    860,512.95x = 326,974,540,266.11
  5. Step 5: Solve for x
    x = 326,974,540,266.11/860,512.95
  6. Step 6: Final answer
    x = 379,976.32

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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.