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Finding the Fourth Proportional to 567.76, 779.57 and 483.88

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Solution

The fourth proportional to 567.76, 779.57 and 483.88 is: 664.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    567.76 : 779.57 = 483.88 : x
  2. Step 2: Convert to fraction form
    567.76/779.57 = 483.88/x
  3. Step 3: Cross multiply
    567.76x = 779.57 × 483.88
  4. Step 4: Simplify right side
    567.76x = 377,218.33
  5. Step 5: Solve for x
    x = 377,218.33/567.76
  6. Step 6: Final answer
    x = 664.40

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1.5x scale

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.