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Finding the Fourth Proportional to 668.71, 923.93 and 594.36

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Solution

The fourth proportional to 668.71, 923.93 and 594.36 is: 821.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    668.71 : 923.93 = 594.36 : x
  2. Step 2: Convert to fraction form
    668.71/923.93 = 594.36/x
  3. Step 3: Cross multiply
    668.71x = 923.93 × 594.36
  4. Step 4: Simplify right side
    668.71x = 549,150.56
  5. Step 5: Solve for x
    x = 549,150.56/668.71
  6. Step 6: Final answer
    x = 821.21

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1.5x scale

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.