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Finding the Third Proportional to 586.50 and 985.50

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Solution

The third proportional to 586.50 and 985.50 is: 1,655.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    586.50 : 985.50 = 985.50 : x
  2. Step 2: Convert to fraction form
    586.50/985.50 = 985.50/x
  3. Step 3: Cross multiply
    586.50x = 985.50 × 985.50
  4. Step 4: Simplify right side
    586.50x = 971,210.25
  5. Step 5: Solve for x
    x = 971,210.25/586.50
  6. Step 6: Final answer
    x = 1,655.94

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Why These Related Problems?

These problems maintain the same ratio (1.68) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.