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Finding the Fourth Proportional to 567.48, 782.52 and 456.64

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Solution

The fourth proportional to 567.48, 782.52 and 456.64 is: 629.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    567.48 : 782.52 = 456.64 : x
  2. Step 2: Convert to fraction form
    567.48/782.52 = 456.64/x
  3. Step 3: Cross multiply
    567.48x = 782.52 × 456.64
  4. Step 4: Simplify right side
    567.48x = 357,329.93
  5. Step 5: Solve for x
    x = 357,329.93/567.48
  6. Step 6: Final answer
    x = 629.68

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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.