Home / 547,967.40-821,432.70-323,500.20

Finding the Fourth Proportional to 547,967.40, 821,432.70 and 323,500.20

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Solution

The fourth proportional to 547,967.40, 821,432.70 and 323,500.20 is: 484,944.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,967.40 : 821,432.70 = 323,500.20 : x
  2. Step 2: Convert to fraction form
    547,967.40/821,432.70 = 323,500.20/x
  3. Step 3: Cross multiply
    547,967.40x = 821,432.70 × 323,500.20
  4. Step 4: Simplify right side
    547,967.40x = 265,733,642,736.54
  5. Step 5: Solve for x
    x = 265,733,642,736.54/547,967.40
  6. Step 6: Final answer
    x = 484,944.26

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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.