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Finding the Fourth Proportional to 1,035.77, 1,550.88 and 547.79

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Solution

The fourth proportional to 1,035.77, 1,550.88 and 547.79 is: 820.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,035.77 : 1,550.88 = 547.79 : x
  2. Step 2: Convert to fraction form
    1,035.77/1,550.88 = 547.79/x
  3. Step 3: Cross multiply
    1,035.77x = 1,550.88 × 547.79
  4. Step 4: Simplify right side
    1,035.77x = 849,548.80
  5. Step 5: Solve for x
    x = 849,548.80/1,035.77
  6. Step 6: Final answer
    x = 820.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.