Home / 662,664.20-993,996.30-213,384.20

Finding the Fourth Proportional to 662,664.20, 993,996.30 and 213,384.20

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Solution

The fourth proportional to 662,664.20, 993,996.30 and 213,384.20 is: 320,076.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,664.20 : 993,996.30 = 213,384.20 : x
  2. Step 2: Convert to fraction form
    662,664.20/993,996.30 = 213,384.20/x
  3. Step 3: Cross multiply
    662,664.20x = 993,996.30 × 213,384.20
  4. Step 4: Simplify right side
    662,664.20x = 212,103,105,278.46
  5. Step 5: Solve for x
    x = 212,103,105,278.46/662,664.20
  6. Step 6: Final answer
    x = 320,076.30

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Similar ratio
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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.