Home / 860,701.40-1,291,100.70-261,682.10

Finding the Fourth Proportional to 860,701.40, 1,291,100.70 and 261,682.10

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Solution

The fourth proportional to 860,701.40, 1,291,100.70 and 261,682.10 is: 392,537.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,701.40 : 1,291,100.70 = 261,682.10 : x
  2. Step 2: Convert to fraction form
    860,701.40/1,291,100.70 = 261,682.10/x
  3. Step 3: Cross multiply
    860,701.40x = 1,291,100.70 × 261,682.10
  4. Step 4: Simplify right side
    860,701.40x = 337,857,942,487.47
  5. Step 5: Solve for x
    x = 337,857,942,487.47/860,701.40
  6. Step 6: Final answer
    x = 392,537.93

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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.