Home / 766,451.79-1,057,689.77-426,912.75

Finding the Fourth Proportional to 766,451.79, 1,057,689.77 and 426,912.75

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Solution

The fourth proportional to 766,451.79, 1,057,689.77 and 426,912.75 is: 589,131.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,451.79 : 1,057,689.77 = 426,912.75 : x
  2. Step 2: Convert to fraction form
    766,451.79/1,057,689.77 = 426,912.75/x
  3. Step 3: Cross multiply
    766,451.79x = 1,057,689.77 × 426,912.75
  4. Step 4: Simplify right side
    766,451.79x = 451,541,246,223.00
  5. Step 5: Solve for x
    x = 451,541,246,223.00/766,451.79
  6. Step 6: Final answer
    x = 589,131.96

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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.