Home / 847,401.05-1,271,101.16-216,314.66

Finding the Fourth Proportional to 847,401.05, 1,271,101.16 and 216,314.66

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Solution

The fourth proportional to 847,401.05, 1,271,101.16 and 216,314.66 is: 324,471.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    847,401.05 : 1,271,101.16 = 216,314.66 : x
  2. Step 2: Convert to fraction form
    847,401.05/1,271,101.16 = 216,314.66/x
  3. Step 3: Cross multiply
    847,401.05x = 1,271,101.16 × 216,314.66
  4. Step 4: Simplify right side
    847,401.05x = 274,957,809,436.29
  5. Step 5: Solve for x
    x = 274,957,809,436.29/847,401.05
  6. Step 6: Final answer
    x = 324,471.88

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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.