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Finding the Fourth Proportional to 597.02, 823.27 and 387.30

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Solution

The fourth proportional to 597.02, 823.27 and 387.30 is: 534.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    597.02 : 823.27 = 387.30 : x
  2. Step 2: Convert to fraction form
    597.02/823.27 = 387.30/x
  3. Step 3: Cross multiply
    597.02x = 823.27 × 387.30
  4. Step 4: Simplify right side
    597.02x = 318,852.47
  5. Step 5: Solve for x
    x = 318,852.47/597.02
  6. Step 6: Final answer
    x = 534.07

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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.