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Finding the Fourth Proportional to 860.01, 1,186.34 and 544.68

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Solution

The fourth proportional to 860.01, 1,186.34 and 544.68 is: 751.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    860.01 : 1,186.34 = 544.68 : x
  2. Step 2: Convert to fraction form
    860.01/1,186.34 = 544.68/x
  3. Step 3: Cross multiply
    860.01x = 1,186.34 × 544.68
  4. Step 4: Simplify right side
    860.01x = 646,175.67
  5. Step 5: Solve for x
    x = 646,175.67/860.01
  6. Step 6: Final answer
    x = 751.36

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Double scale
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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.