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Finding the Fourth Proportional to 662,734.20, 994,266.90 and 213,497.40

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Solution

The fourth proportional to 662,734.20, 994,266.90 and 213,497.40 is: 320,299.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,734.20 : 994,266.90 = 213,497.40 : x
  2. Step 2: Convert to fraction form
    662,734.20/994,266.90 = 213,497.40/x
  3. Step 3: Cross multiply
    662,734.20x = 994,266.90 × 213,497.40
  4. Step 4: Simplify right side
    662,734.20x = 212,273,398,056.06
  5. Step 5: Solve for x
    x = 212,273,398,056.06/662,734.20
  6. Step 6: Final answer
    x = 320,299.45

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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.