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Finding the Fourth Proportional to 624.12, 934.56 and 507.75

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Solution

The fourth proportional to 624.12, 934.56 and 507.75 is: 760.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    624.12 : 934.56 = 507.75 : x
  2. Step 2: Convert to fraction form
    624.12/934.56 = 507.75/x
  3. Step 3: Cross multiply
    624.12x = 934.56 × 507.75
  4. Step 4: Simplify right side
    624.12x = 474,522.84
  5. Step 5: Solve for x
    x = 474,522.84/624.12
  6. Step 6: Final answer
    x = 760.31

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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.