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Finding the Fourth Proportional to 673.42, 929.80 and 437.72

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Solution

The fourth proportional to 673.42, 929.80 and 437.72 is: 604.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    673.42 : 929.80 = 437.72 : x
  2. Step 2: Convert to fraction form
    673.42/929.80 = 437.72/x
  3. Step 3: Cross multiply
    673.42x = 929.80 × 437.72
  4. Step 4: Simplify right side
    673.42x = 406,992.06
  5. Step 5: Solve for x
    x = 406,992.06/673.42
  6. Step 6: Final answer
    x = 604.37

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1.5x scale

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.