Home / 766,313.36-1,057,512.46-426,781.60

Finding the Fourth Proportional to 766,313.36, 1,057,512.46 and 426,781.60

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Solution

The fourth proportional to 766,313.36, 1,057,512.46 and 426,781.60 is: 588,958.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,313.36 : 1,057,512.46 = 426,781.60 : x
  2. Step 2: Convert to fraction form
    766,313.36/1,057,512.46 = 426,781.60/x
  3. Step 3: Cross multiply
    766,313.36x = 1,057,512.46 × 426,781.60
  4. Step 4: Simplify right side
    766,313.36x = 451,326,859,698.74
  5. Step 5: Solve for x
    x = 451,326,859,698.74/766,313.36
  6. Step 6: Final answer
    x = 588,958.62

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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.