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Finding the Fourth Proportional to 572.07, 783.72 and 550.20

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Solution

The fourth proportional to 572.07, 783.72 and 550.20 is: 753.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    572.07 : 783.72 = 550.20 : x
  2. Step 2: Convert to fraction form
    572.07/783.72 = 550.20/x
  3. Step 3: Cross multiply
    572.07x = 783.72 × 550.20
  4. Step 4: Simplify right side
    572.07x = 431,202.74
  5. Step 5: Solve for x
    x = 431,202.74/572.07
  6. Step 6: Final answer
    x = 753.76

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.