Home / 766,285.38-1,057,556.90-422,156.58

Finding the Fourth Proportional to 766,285.38, 1,057,556.90 and 422,156.58

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Solution

The fourth proportional to 766,285.38, 1,057,556.90 and 422,156.58 is: 582,621.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,285.38 : 1,057,556.90 = 422,156.58 : x
  2. Step 2: Convert to fraction form
    766,285.38/1,057,556.90 = 422,156.58/x
  3. Step 3: Cross multiply
    766,285.38x = 1,057,556.90 × 422,156.58
  4. Step 4: Simplify right side
    766,285.38x = 446,454,604,059.40
  5. Step 5: Solve for x
    x = 446,454,604,059.40/766,285.38
  6. Step 6: Final answer
    x = 582,621.85

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Double scale
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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.