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Finding the Fourth Proportional to 442,087.68, 609,013.44 and 365,286.72

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Solution

The fourth proportional to 442,087.68, 609,013.44 and 365,286.72 is: 503,213.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,087.68 : 609,013.44 = 365,286.72 : x
  2. Step 2: Convert to fraction form
    442,087.68/609,013.44 = 365,286.72/x
  3. Step 3: Cross multiply
    442,087.68x = 609,013.44 × 365,286.72
  4. Step 4: Simplify right side
    442,087.68x = 222,464,521,933.52
  5. Step 5: Solve for x
    x = 222,464,521,933.52/442,087.68
  6. Step 6: Final answer
    x = 503,213.58

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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.