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Finding the Fourth Proportional to 750.99, 1,120.93 and 704.82

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Solution

The fourth proportional to 750.99, 1,120.93 and 704.82 is: 1,052.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    750.99 : 1,120.93 = 704.82 : x
  2. Step 2: Convert to fraction form
    750.99/1,120.93 = 704.82/x
  3. Step 3: Cross multiply
    750.99x = 1,120.93 × 704.82
  4. Step 4: Simplify right side
    750.99x = 790,052.12
  5. Step 5: Solve for x
    x = 790,052.12/750.99
  6. Step 6: Final answer
    x = 1,052.01

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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.