Home / 818,241.62-1,227,441.72-278,878.22

Finding the Fourth Proportional to 818,241.62, 1,227,441.72 and 278,878.22

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Solution

The fourth proportional to 818,241.62, 1,227,441.72 and 278,878.22 is: 418,344.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,241.62 : 1,227,441.72 = 278,878.22 : x
  2. Step 2: Convert to fraction form
    818,241.62/1,227,441.72 = 278,878.22/x
  3. Step 3: Cross multiply
    818,241.62x = 1,227,441.72 × 278,878.22
  4. Step 4: Simplify right side
    818,241.62x = 342,306,762,027.34
  5. Step 5: Solve for x
    x = 342,306,762,027.34/818,241.62
  6. Step 6: Final answer
    x = 418,344.35

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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.