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Finding the Fourth Proportional to 571.54, 787.59 and 500.28

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Solution

The fourth proportional to 571.54, 787.59 and 500.28 is: 689.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    571.54 : 787.59 = 500.28 : x
  2. Step 2: Convert to fraction form
    571.54/787.59 = 500.28/x
  3. Step 3: Cross multiply
    571.54x = 787.59 × 500.28
  4. Step 4: Simplify right side
    571.54x = 394,010.46
  5. Step 5: Solve for x
    x = 394,010.46/571.54
  6. Step 6: Final answer
    x = 689.38

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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.