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Finding the Fourth Proportional to 617.22, 920.48 and 526.50

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Solution

The fourth proportional to 617.22, 920.48 and 526.50 is: 785.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    617.22 : 920.48 = 526.50 : x
  2. Step 2: Convert to fraction form
    617.22/920.48 = 526.50/x
  3. Step 3: Cross multiply
    617.22x = 920.48 × 526.50
  4. Step 4: Simplify right side
    617.22x = 484,630.09
  5. Step 5: Solve for x
    x = 484,630.09/617.22
  6. Step 6: Final answer
    x = 785.18

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.