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Finding the Fourth Proportional to 710.93, 1,066.41 and 607.56

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Solution

The fourth proportional to 710.93, 1,066.41 and 607.56 is: 911.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    710.93 : 1,066.41 = 607.56 : x
  2. Step 2: Convert to fraction form
    710.93/1,066.41 = 607.56/x
  3. Step 3: Cross multiply
    710.93x = 1,066.41 × 607.56
  4. Step 4: Simplify right side
    710.93x = 647,908.06
  5. Step 5: Solve for x
    x = 647,908.06/710.93
  6. Step 6: Final answer
    x = 911.36

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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.