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Finding the Fourth Proportional to 529.83, 797.51 and 479.52

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Solution

The fourth proportional to 529.83, 797.51 and 479.52 is: 721.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    529.83 : 797.51 = 479.52 : x
  2. Step 2: Convert to fraction form
    529.83/797.51 = 479.52/x
  3. Step 3: Cross multiply
    529.83x = 797.51 × 479.52
  4. Step 4: Simplify right side
    529.83x = 382,423.19
  5. Step 5: Solve for x
    x = 382,423.19/529.83
  6. Step 6: Final answer
    x = 721.78

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.