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Finding the Fourth Proportional to 529.51, 729.06 and 480.91

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Solution

The fourth proportional to 529.51, 729.06 and 480.91 is: 662.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    529.51 : 729.06 = 480.91 : x
  2. Step 2: Convert to fraction form
    529.51/729.06 = 480.91/x
  3. Step 3: Cross multiply
    529.51x = 729.06 × 480.91
  4. Step 4: Simplify right side
    529.51x = 350,612.24
  5. Step 5: Solve for x
    x = 350,612.24/529.51
  6. Step 6: Final answer
    x = 662.14

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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.