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Finding the Fourth Proportional to 563.07, 780.57 and 533.43

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Solution

The fourth proportional to 563.07, 780.57 and 533.43 is: 739.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    563.07 : 780.57 = 533.43 : x
  2. Step 2: Convert to fraction form
    563.07/780.57 = 533.43/x
  3. Step 3: Cross multiply
    563.07x = 780.57 × 533.43
  4. Step 4: Simplify right side
    563.07x = 416,379.46
  5. Step 5: Solve for x
    x = 416,379.46/563.07
  6. Step 6: Final answer
    x = 739.48

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.