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Finding the Fourth Proportional to 668.07, 923.27 and 570.87

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Solution

The fourth proportional to 668.07, 923.27 and 570.87 is: 788.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    668.07 : 923.27 = 570.87 : x
  2. Step 2: Convert to fraction form
    668.07/923.27 = 570.87/x
  3. Step 3: Cross multiply
    668.07x = 923.27 × 570.87
  4. Step 4: Simplify right side
    668.07x = 527,064.29
  5. Step 5: Solve for x
    x = 527,064.29/668.07
  6. Step 6: Final answer
    x = 788.94

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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.