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Finding the Fourth Proportional to 622.74, 934.80 and 526.44

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Solution

The fourth proportional to 622.74, 934.80 and 526.44 is: 790.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    622.74 : 934.80 = 526.44 : x
  2. Step 2: Convert to fraction form
    622.74/934.80 = 526.44/x
  3. Step 3: Cross multiply
    622.74x = 934.80 × 526.44
  4. Step 4: Simplify right side
    622.74x = 492,116.11
  5. Step 5: Solve for x
    x = 492,116.11/622.74
  6. Step 6: Final answer
    x = 790.24

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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.