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Finding the Fourth Proportional to 662,846.48, 994,306.20 and 213,534.80

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Solution

The fourth proportional to 662,846.48, 994,306.20 and 213,534.80 is: 320,313.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,846.48 : 994,306.20 = 213,534.80 : x
  2. Step 2: Convert to fraction form
    662,846.48/994,306.20 = 213,534.80/x
  3. Step 3: Cross multiply
    662,846.48x = 994,306.20 × 213,534.80
  4. Step 4: Simplify right side
    662,846.48x = 212,318,975,555.76
  5. Step 5: Solve for x
    x = 212,318,975,555.76/662,846.48
  6. Step 6: Final answer
    x = 320,313.95

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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.