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Finding the Fourth Proportional to 709.21, 976.75 and 610.93

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Solution

The fourth proportional to 709.21, 976.75 and 610.93 is: 841.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    709.21 : 976.75 = 610.93 : x
  2. Step 2: Convert to fraction form
    709.21/976.75 = 610.93/x
  3. Step 3: Cross multiply
    709.21x = 976.75 × 610.93
  4. Step 4: Simplify right side
    709.21x = 596,725.88
  5. Step 5: Solve for x
    x = 596,725.88/709.21
  6. Step 6: Final answer
    x = 841.40

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1.5x scale

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.