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Finding the Fourth Proportional to 567.93, 787.03 and 556.99

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Solution

The fourth proportional to 567.93, 787.03 and 556.99 is: 771.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    567.93 : 787.03 = 556.99 : x
  2. Step 2: Convert to fraction form
    567.93/787.03 = 556.99/x
  3. Step 3: Cross multiply
    567.93x = 787.03 × 556.99
  4. Step 4: Simplify right side
    567.93x = 438,365.05
  5. Step 5: Solve for x
    x = 438,365.05/567.93
  6. Step 6: Final answer
    x = 771.87

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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.