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Finding the Fourth Proportional to 729.02, 1,094.06 and 404.66

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Solution

The fourth proportional to 729.02, 1,094.06 and 404.66 is: 607.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    729.02 : 1,094.06 = 404.66 : x
  2. Step 2: Convert to fraction form
    729.02/1,094.06 = 404.66/x
  3. Step 3: Cross multiply
    729.02x = 1,094.06 × 404.66
  4. Step 4: Simplify right side
    729.02x = 442,717.86
  5. Step 5: Solve for x
    x = 442,717.86/729.02
  6. Step 6: Final answer
    x = 607.28

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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.