Home / 860,676.60-1,290,968.17-261,591.05

Finding the Fourth Proportional to 860,676.60, 1,290,968.17 and 261,591.05

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Solution

The fourth proportional to 860,676.60, 1,290,968.17 and 261,591.05 is: 392,372.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,676.60 : 1,290,968.17 = 261,591.05 : x
  2. Step 2: Convert to fraction form
    860,676.60/1,290,968.17 = 261,591.05/x
  3. Step 3: Cross multiply
    860,676.60x = 1,290,968.17 × 261,591.05
  4. Step 4: Simplify right side
    860,676.60x = 337,705,712,652.04
  5. Step 5: Solve for x
    x = 337,705,712,652.04/860,676.60
  6. Step 6: Final answer
    x = 392,372.37

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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.