Home / 847,405.68-1,271,108.10-216,319.28

Finding the Fourth Proportional to 847,405.68, 1,271,108.10 and 216,319.28

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Solution

The fourth proportional to 847,405.68, 1,271,108.10 and 216,319.28 is: 324,478.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    847,405.68 : 1,271,108.10 = 216,319.28 : x
  2. Step 2: Convert to fraction form
    847,405.68/1,271,108.10 = 216,319.28/x
  3. Step 3: Cross multiply
    847,405.68x = 1,271,108.10 × 216,319.28
  4. Step 4: Simplify right side
    847,405.68x = 274,965,188,994.17
  5. Step 5: Solve for x
    x = 274,965,188,994.17/847,405.68
  6. Step 6: Final answer
    x = 324,478.81

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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.