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Finding the Fourth Proportional to 487.08, 729.99 and 460.44

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Solution

The fourth proportional to 487.08, 729.99 and 460.44 is: 690.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    487.08 : 729.99 = 460.44 : x
  2. Step 2: Convert to fraction form
    487.08/729.99 = 460.44/x
  3. Step 3: Cross multiply
    487.08x = 729.99 × 460.44
  4. Step 4: Simplify right side
    487.08x = 336,116.60
  5. Step 5: Solve for x
    x = 336,116.60/487.08
  6. Step 6: Final answer
    x = 690.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.