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Finding the Fourth Proportional to 710.10, 980.42 and 444.66

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Solution

The fourth proportional to 710.10, 980.42 and 444.66 is: 613.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    710.10 : 980.42 = 444.66 : x
  2. Step 2: Convert to fraction form
    710.10/980.42 = 444.66/x
  3. Step 3: Cross multiply
    710.10x = 980.42 × 444.66
  4. Step 4: Simplify right side
    710.10x = 435,953.56
  5. Step 5: Solve for x
    x = 435,953.56/710.10
  6. Step 6: Final answer
    x = 613.93

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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.