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Finding the Fourth Proportional to 708,264, 1,062,604.08 and 209,640.96

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Solution

The fourth proportional to 708,264, 1,062,604.08 and 209,640.96 is: 314,523.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,264 : 1,062,604.08 = 209,640.96 : x
  2. Step 2: Convert to fraction form
    708,264/1,062,604.08 = 209,640.96/x
  3. Step 3: Cross multiply
    708,264x = 1,062,604.08 × 209,640.96
  4. Step 4: Simplify right side
    708,264x = 222,765,339,431.12
  5. Step 5: Solve for x
    x = 222,765,339,431.12/708,264
  6. Step 6: Final answer
    x = 314,523.03

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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.