Home / 492,933.12-680,431.72-383,821.44

Finding the Fourth Proportional to 492,933.12, 680,431.72 and 383,821.44

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Solution

The fourth proportional to 492,933.12, 680,431.72 and 383,821.44 is: 529,816.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,933.12 : 680,431.72 = 383,821.44 : x
  2. Step 2: Convert to fraction form
    492,933.12/680,431.72 = 383,821.44/x
  3. Step 3: Cross multiply
    492,933.12x = 680,431.72 × 383,821.44
  4. Step 4: Simplify right side
    492,933.12x = 261,164,282,592.08
  5. Step 5: Solve for x
    x = 261,164,282,592.08/492,933.12
  6. Step 6: Final answer
    x = 529,816.87

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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.