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Finding the Fourth Proportional to 668.04, 920.19 and 563.01

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Solution

The fourth proportional to 668.04, 920.19 and 563.01 is: 775.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    668.04 : 920.19 = 563.01 : x
  2. Step 2: Convert to fraction form
    668.04/920.19 = 563.01/x
  3. Step 3: Cross multiply
    668.04x = 920.19 × 563.01
  4. Step 4: Simplify right side
    668.04x = 518,076.17
  5. Step 5: Solve for x
    x = 518,076.17/668.04
  6. Step 6: Final answer
    x = 775.52

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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.