Home / 765,954.96-1,057,019.40-426,435.36

Finding the Fourth Proportional to 765,954.96, 1,057,019.40 and 426,435.36

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Solution

The fourth proportional to 765,954.96, 1,057,019.40 and 426,435.36 is: 588,481.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,954.96 : 1,057,019.40 = 426,435.36 : x
  2. Step 2: Convert to fraction form
    765,954.96/1,057,019.40 = 426,435.36/x
  3. Step 3: Cross multiply
    765,954.96x = 1,057,019.40 × 426,435.36
  4. Step 4: Simplify right side
    765,954.96x = 450,750,448,365.98
  5. Step 5: Solve for x
    x = 450,750,448,365.98/765,954.96
  6. Step 6: Final answer
    x = 588,481.66

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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.