Home / 860,721.66-1,291,080.33-261,680.22

Finding the Fourth Proportional to 860,721.66, 1,291,080.33 and 261,680.22

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Solution

The fourth proportional to 860,721.66, 1,291,080.33 and 261,680.22 is: 392,519.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,721.66 : 1,291,080.33 = 261,680.22 : x
  2. Step 2: Convert to fraction form
    860,721.66/1,291,080.33 = 261,680.22/x
  3. Step 3: Cross multiply
    860,721.66x = 1,291,080.33 × 261,680.22
  4. Step 4: Simplify right side
    860,721.66x = 337,850,184,792.07
  5. Step 5: Solve for x
    x = 337,850,184,792.07/860,721.66
  6. Step 6: Final answer
    x = 392,519.67

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1.5x scale

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.