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Finding the Fourth Proportional to 531.15, 792.86 and 507.48

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Solution

The fourth proportional to 531.15, 792.86 and 507.48 is: 757.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    531.15 : 792.86 = 507.48 : x
  2. Step 2: Convert to fraction form
    531.15/792.86 = 507.48/x
  3. Step 3: Cross multiply
    531.15x = 792.86 × 507.48
  4. Step 4: Simplify right side
    531.15x = 402,358.06
  5. Step 5: Solve for x
    x = 402,358.06/531.15
  6. Step 6: Final answer
    x = 757.52

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.