Home / 860,288.34-1,290,348.68-261,254.69

Finding the Fourth Proportional to 860,288.34, 1,290,348.68 and 261,254.69

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Solution

The fourth proportional to 860,288.34, 1,290,348.68 and 261,254.69 is: 391,856.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,288.34 : 1,290,348.68 = 261,254.69 : x
  2. Step 2: Convert to fraction form
    860,288.34/1,290,348.68 = 261,254.69/x
  3. Step 3: Cross multiply
    860,288.34x = 1,290,348.68 × 261,254.69
  4. Step 4: Simplify right side
    860,288.34x = 337,109,646,564.76
  5. Step 5: Solve for x
    x = 337,109,646,564.76/860,288.34
  6. Step 6: Final answer
    x = 391,856.58

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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.