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Finding the Fourth Proportional to 560.37, 837.60 and 486.66

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Solution

The fourth proportional to 560.37, 837.60 and 486.66 is: 727.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    560.37 : 837.60 = 486.66 : x
  2. Step 2: Convert to fraction form
    560.37/837.60 = 486.66/x
  3. Step 3: Cross multiply
    560.37x = 837.60 × 486.66
  4. Step 4: Simplify right side
    560.37x = 407,626.42
  5. Step 5: Solve for x
    x = 407,626.42/560.37
  6. Step 6: Final answer
    x = 727.42

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.