Home / 860,302.14-1,290,455.30-261,267.85

Finding the Fourth Proportional to 860,302.14, 1,290,455.30 and 261,267.85

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Solution

The fourth proportional to 860,302.14, 1,290,455.30 and 261,267.85 is: 391,902.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,302.14 : 1,290,455.30 = 261,267.85 : x
  2. Step 2: Convert to fraction form
    860,302.14/1,290,455.30 = 261,267.85/x
  3. Step 3: Cross multiply
    860,302.14x = 1,290,455.30 × 261,267.85
  4. Step 4: Simplify right side
    860,302.14x = 337,154,481,752.11
  5. Step 5: Solve for x
    x = 337,154,481,752.11/860,302.14
  6. Step 6: Final answer
    x = 391,902.41

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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.