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Finding the Fourth Proportional to 529.04, 792.54 and 345.88

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Solution

The fourth proportional to 529.04, 792.54 and 345.88 is: 518.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    529.04 : 792.54 = 345.88 : x
  2. Step 2: Convert to fraction form
    529.04/792.54 = 345.88/x
  3. Step 3: Cross multiply
    529.04x = 792.54 × 345.88
  4. Step 4: Simplify right side
    529.04x = 274,123.74
  5. Step 5: Solve for x
    x = 274,123.74/529.04
  6. Step 6: Final answer
    x = 518.15

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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.