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Finding the Fourth Proportional to 575.15, 863.60 and 507.24

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Solution

The fourth proportional to 575.15, 863.60 and 507.24 is: 761.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    575.15 : 863.60 = 507.24 : x
  2. Step 2: Convert to fraction form
    575.15/863.60 = 507.24/x
  3. Step 3: Cross multiply
    575.15x = 863.60 × 507.24
  4. Step 4: Simplify right side
    575.15x = 438,052.46
  5. Step 5: Solve for x
    x = 438,052.46/575.15
  6. Step 6: Final answer
    x = 761.63

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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.