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Finding the Fourth Proportional to 442,770.08, 611,004.48 and 261,540.72

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Solution

The fourth proportional to 442,770.08, 611,004.48 and 261,540.72 is: 360,915.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,770.08 : 611,004.48 = 261,540.72 : x
  2. Step 2: Convert to fraction form
    442,770.08/611,004.48 = 261,540.72/x
  3. Step 3: Cross multiply
    442,770.08x = 611,004.48 × 261,540.72
  4. Step 4: Simplify right side
    442,770.08x = 159,802,551,622.43
  5. Step 5: Solve for x
    x = 159,802,551,622.43/442,770.08
  6. Step 6: Final answer
    x = 360,915.43

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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.