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Finding the Fourth Proportional to 706.93, 1,055.24 and 654.82

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Solution

The fourth proportional to 706.93, 1,055.24 and 654.82 is: 977.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    706.93 : 1,055.24 = 654.82 : x
  2. Step 2: Convert to fraction form
    706.93/1,055.24 = 654.82/x
  3. Step 3: Cross multiply
    706.93x = 1,055.24 × 654.82
  4. Step 4: Simplify right side
    706.93x = 690,991.62
  5. Step 5: Solve for x
    x = 690,991.62/706.93
  6. Step 6: Final answer
    x = 977.45

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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.