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Finding the Fourth Proportional to 708.51, 1,062.99 and 361.94

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Solution

The fourth proportional to 708.51, 1,062.99 and 361.94 is: 543.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    708.51 : 1,062.99 = 361.94 : x
  2. Step 2: Convert to fraction form
    708.51/1,062.99 = 361.94/x
  3. Step 3: Cross multiply
    708.51x = 1,062.99 × 361.94
  4. Step 4: Simplify right side
    708.51x = 384,733.29
  5. Step 5: Solve for x
    x = 384,733.29/708.51
  6. Step 6: Final answer
    x = 543.02

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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.