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Finding the Fourth Proportional to 673.39, 928.57 and 437.07

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Solution

The fourth proportional to 673.39, 928.57 and 437.07 is: 602.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    673.39 : 928.57 = 437.07 : x
  2. Step 2: Convert to fraction form
    673.39/928.57 = 437.07/x
  3. Step 3: Cross multiply
    673.39x = 928.57 × 437.07
  4. Step 4: Simplify right side
    673.39x = 405,850.09
  5. Step 5: Solve for x
    x = 405,850.09/673.39
  6. Step 6: Final answer
    x = 602.70

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Double scale
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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.