Home / 860,865.70-1,291,298.55-261,822.10

Finding the Fourth Proportional to 860,865.70, 1,291,298.55 and 261,822.10

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Solution

The fourth proportional to 860,865.70, 1,291,298.55 and 261,822.10 is: 392,733.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,865.70 : 1,291,298.55 = 261,822.10 : x
  2. Step 2: Convert to fraction form
    860,865.70/1,291,298.55 = 261,822.10/x
  3. Step 3: Cross multiply
    860,865.70x = 1,291,298.55 × 261,822.10
  4. Step 4: Simplify right side
    860,865.70x = 338,090,498,087.96
  5. Step 5: Solve for x
    x = 338,090,498,087.96/860,865.70
  6. Step 6: Final answer
    x = 392,733.15

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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.