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Finding the Fourth Proportional to 847.58, 1,168.80 and 567.77

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Solution

The fourth proportional to 847.58, 1,168.80 and 567.77 is: 782.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    847.58 : 1,168.80 = 567.77 : x
  2. Step 2: Convert to fraction form
    847.58/1,168.80 = 567.77/x
  3. Step 3: Cross multiply
    847.58x = 1,168.80 × 567.77
  4. Step 4: Simplify right side
    847.58x = 663,609.58
  5. Step 5: Solve for x
    x = 663,609.58/847.58
  6. Step 6: Final answer
    x = 782.95

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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.