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Finding the Fourth Proportional to 673.27, 929.43 and 507.55

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Solution

The fourth proportional to 673.27, 929.43 and 507.55 is: 700.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    673.27 : 929.43 = 507.55 : x
  2. Step 2: Convert to fraction form
    673.27/929.43 = 507.55/x
  3. Step 3: Cross multiply
    673.27x = 929.43 × 507.55
  4. Step 4: Simplify right side
    673.27x = 471,732.20
  5. Step 5: Solve for x
    x = 471,732.20/673.27
  6. Step 6: Final answer
    x = 700.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.