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Finding the Fourth Proportional to 493,642.40, 741,241.20 and 283,690.40

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Solution

The fourth proportional to 493,642.40, 741,241.20 and 283,690.40 is: 425,982.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,642.40 : 741,241.20 = 283,690.40 : x
  2. Step 2: Convert to fraction form
    493,642.40/741,241.20 = 283,690.40/x
  3. Step 3: Cross multiply
    493,642.40x = 741,241.20 × 283,690.40
  4. Step 4: Simplify right side
    493,642.40x = 210,283,012,524.48
  5. Step 5: Solve for x
    x = 210,283,012,524.48/493,642.40
  6. Step 6: Final answer
    x = 425,982.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.