Home / 860,204.39-1,290,372.20-261,215.16

Finding the Fourth Proportional to 860,204.39, 1,290,372.20 and 261,215.16

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Solution

The fourth proportional to 860,204.39, 1,290,372.20 and 261,215.16 is: 391,842.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,204.39 : 1,290,372.20 = 261,215.16 : x
  2. Step 2: Convert to fraction form
    860,204.39/1,290,372.20 = 261,215.16/x
  3. Step 3: Cross multiply
    860,204.39x = 1,290,372.20 × 261,215.16
  4. Step 4: Simplify right side
    860,204.39x = 337,064,779,376.48
  5. Step 5: Solve for x
    x = 337,064,779,376.48/860,204.39
  6. Step 6: Final answer
    x = 391,842.67

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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.