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Finding the Fourth Proportional to 872.03, 1,307.35 and 597.28

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Solution

The fourth proportional to 872.03, 1,307.35 and 597.28 is: 895.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    872.03 : 1,307.35 = 597.28 : x
  2. Step 2: Convert to fraction form
    872.03/1,307.35 = 597.28/x
  3. Step 3: Cross multiply
    872.03x = 1,307.35 × 597.28
  4. Step 4: Simplify right side
    872.03x = 780,854.01
  5. Step 5: Solve for x
    x = 780,854.01/872.03
  6. Step 6: Final answer
    x = 895.44

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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.