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Finding the Fourth Proportional to 675.04, 930.72 and 441.76

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Solution

The fourth proportional to 675.04, 930.72 and 441.76 is: 609.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    675.04 : 930.72 = 441.76 : x
  2. Step 2: Convert to fraction form
    675.04/930.72 = 441.76/x
  3. Step 3: Cross multiply
    675.04x = 930.72 × 441.76
  4. Step 4: Simplify right side
    675.04x = 411,154.87
  5. Step 5: Solve for x
    x = 411,154.87/675.04
  6. Step 6: Final answer
    x = 609.08

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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.