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Finding the Fourth Proportional to 1,029.90, 1,544.55 and 567.90

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Solution

The fourth proportional to 1,029.90, 1,544.55 and 567.90 is: 851.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,029.90 : 1,544.55 = 567.90 : x
  2. Step 2: Convert to fraction form
    1,029.90/1,544.55 = 567.90/x
  3. Step 3: Cross multiply
    1,029.90x = 1,544.55 × 567.90
  4. Step 4: Simplify right side
    1,029.90x = 877,149.95
  5. Step 5: Solve for x
    x = 877,149.95/1,029.90
  6. Step 6: Final answer
    x = 851.68

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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.