Home / 766,479.62-1,057,825.23-422,351.12

Finding the Fourth Proportional to 766,479.62, 1,057,825.23 and 422,351.12

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Solution

The fourth proportional to 766,479.62, 1,057,825.23 and 422,351.12 is: 582,890.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,479.62 : 1,057,825.23 = 422,351.12 : x
  2. Step 2: Convert to fraction form
    766,479.62/1,057,825.23 = 422,351.12/x
  3. Step 3: Cross multiply
    766,479.62x = 1,057,825.23 × 422,351.12
  4. Step 4: Simplify right side
    766,479.62x = 446,773,670,654.76
  5. Step 5: Solve for x
    x = 446,773,670,654.76/766,479.62
  6. Step 6: Final answer
    x = 582,890.48

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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.