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Finding the Fourth Proportional to 510.96, 704.78 and 433.02

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Solution

The fourth proportional to 510.96, 704.78 and 433.02 is: 597.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    510.96 : 704.78 = 433.02 : x
  2. Step 2: Convert to fraction form
    510.96/704.78 = 433.02/x
  3. Step 3: Cross multiply
    510.96x = 704.78 × 433.02
  4. Step 4: Simplify right side
    510.96x = 305,183.84
  5. Step 5: Solve for x
    x = 305,183.84/510.96
  6. Step 6: Final answer
    x = 597.28

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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.