Home / 766,450.34-1,057,659.06-422,218.60

Finding the Fourth Proportional to 766,450.34, 1,057,659.06 and 422,218.60

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Solution

The fourth proportional to 766,450.34, 1,057,659.06 and 422,218.60 is: 582,638.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,450.34 : 1,057,659.06 = 422,218.60 : x
  2. Step 2: Convert to fraction form
    766,450.34/1,057,659.06 = 422,218.60/x
  3. Step 3: Cross multiply
    766,450.34x = 1,057,659.06 × 422,218.60
  4. Step 4: Simplify right side
    766,450.34x = 446,563,327,590.52
  5. Step 5: Solve for x
    x = 446,563,327,590.52/766,450.34
  6. Step 6: Final answer
    x = 582,638.31

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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.