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Finding the Fourth Proportional to 706.08, 974.48 and 430.24

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Solution

The fourth proportional to 706.08, 974.48 and 430.24 is: 593.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    706.08 : 974.48 = 430.24 : x
  2. Step 2: Convert to fraction form
    706.08/974.48 = 430.24/x
  3. Step 3: Cross multiply
    706.08x = 974.48 × 430.24
  4. Step 4: Simplify right side
    706.08x = 419,260.28
  5. Step 5: Solve for x
    x = 419,260.28/706.08
  6. Step 6: Final answer
    x = 593.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.