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Finding the Fourth Proportional to 880.50, 1,320.27 and 572.46

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Solution

The fourth proportional to 880.50, 1,320.27 and 572.46 is: 858.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    880.50 : 1,320.27 = 572.46 : x
  2. Step 2: Convert to fraction form
    880.50/1,320.27 = 572.46/x
  3. Step 3: Cross multiply
    880.50x = 1,320.27 × 572.46
  4. Step 4: Simplify right side
    880.50x = 755,801.76
  5. Step 5: Solve for x
    x = 755,801.76/880.50
  6. Step 6: Final answer
    x = 858.38

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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.