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Finding the Fourth Proportional to 673.80, 928.98 and 437.34

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Solution

The fourth proportional to 673.80, 928.98 and 437.34 is: 602.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    673.80 : 928.98 = 437.34 : x
  2. Step 2: Convert to fraction form
    673.80/928.98 = 437.34/x
  3. Step 3: Cross multiply
    673.80x = 928.98 × 437.34
  4. Step 4: Simplify right side
    673.80x = 406,280.11
  5. Step 5: Solve for x
    x = 406,280.11/673.80
  6. Step 6: Final answer
    x = 602.97

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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.