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Finding the Fourth Proportional to 641.04, 884.08 and 444.28

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Solution

The fourth proportional to 641.04, 884.08 and 444.28 is: 612.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    641.04 : 884.08 = 444.28 : x
  2. Step 2: Convert to fraction form
    641.04/884.08 = 444.28/x
  3. Step 3: Cross multiply
    641.04x = 884.08 × 444.28
  4. Step 4: Simplify right side
    641.04x = 392,779.06
  5. Step 5: Solve for x
    x = 392,779.06/641.04
  6. Step 6: Final answer
    x = 612.72

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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.