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Finding the Fourth Proportional to 575.49, 792.23 and 520.06

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Solution

The fourth proportional to 575.49, 792.23 and 520.06 is: 715.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    575.49 : 792.23 = 520.06 : x
  2. Step 2: Convert to fraction form
    575.49/792.23 = 520.06/x
  3. Step 3: Cross multiply
    575.49x = 792.23 × 520.06
  4. Step 4: Simplify right side
    575.49x = 412,003.17
  5. Step 5: Solve for x
    x = 412,003.17/575.49
  6. Step 6: Final answer
    x = 715.92

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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.