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Finding the Fourth Proportional to 662,952.20, 994,428.30 and 219,720.20

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Solution

The fourth proportional to 662,952.20, 994,428.30 and 219,720.20 is: 329,580.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,952.20 : 994,428.30 = 219,720.20 : x
  2. Step 2: Convert to fraction form
    662,952.20/994,428.30 = 219,720.20/x
  3. Step 3: Cross multiply
    662,952.20x = 994,428.30 × 219,720.20
  4. Step 4: Simplify right side
    662,952.20x = 218,495,984,961.66
  5. Step 5: Solve for x
    x = 218,495,984,961.66/662,952.20
  6. Step 6: Final answer
    x = 329,580.30

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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.