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Finding the Fourth Proportional to 2,657,180.22, 3,986,403.21 and 860,064

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Solution

The fourth proportional to 2,657,180.22, 3,986,403.21 and 860,064 is: 1,290,300.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,657,180.22 : 3,986,403.21 = 860,064 : x
  2. Step 2: Convert to fraction form
    2,657,180.22/3,986,403.21 = 860,064/x
  3. Step 3: Cross multiply
    2,657,180.22x = 3,986,403.21 × 860,064
  4. Step 4: Simplify right side
    2,657,180.22x = 3,428,561,890,405.44
  5. Step 5: Solve for x
    x = 3,428,561,890,405.44/2,657,180.22
  6. Step 6: Final answer
    x = 1,290,300.85

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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.