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Finding the Fourth Proportional to 673.03, 928.76 and 378.29

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Solution

The fourth proportional to 673.03, 928.76 and 378.29 is: 522.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    673.03 : 928.76 = 378.29 : x
  2. Step 2: Convert to fraction form
    673.03/928.76 = 378.29/x
  3. Step 3: Cross multiply
    673.03x = 928.76 × 378.29
  4. Step 4: Simplify right side
    673.03x = 351,336.92
  5. Step 5: Solve for x
    x = 351,336.92/673.03
  6. Step 6: Final answer
    x = 522.02

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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.