Home / 766,412.60-1,057,659.66-426,880.85

Finding the Fourth Proportional to 766,412.60, 1,057,659.66 and 426,880.85

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Solution

The fourth proportional to 766,412.60, 1,057,659.66 and 426,880.85 is: 589,101.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,412.60 : 1,057,659.66 = 426,880.85 : x
  2. Step 2: Convert to fraction form
    766,412.60/1,057,659.66 = 426,880.85/x
  3. Step 3: Cross multiply
    766,412.60x = 1,057,659.66 × 426,880.85
  4. Step 4: Simplify right side
    766,412.60x = 451,494,649,383.21
  5. Step 5: Solve for x
    x = 451,494,649,383.21/766,412.60
  6. Step 6: Final answer
    x = 589,101.29

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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.