Home / 766,480.52-1,057,825.85-422,351.06

Finding the Fourth Proportional to 766,480.52, 1,057,825.85 and 422,351.06

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Solution

The fourth proportional to 766,480.52, 1,057,825.85 and 422,351.06 is: 582,890.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,480.52 : 1,057,825.85 = 422,351.06 : x
  2. Step 2: Convert to fraction form
    766,480.52/1,057,825.85 = 422,351.06/x
  3. Step 3: Cross multiply
    766,480.52x = 1,057,825.85 × 422,351.06
  4. Step 4: Simplify right side
    766,480.52x = 446,773,871,155.87
  5. Step 5: Solve for x
    x = 446,773,871,155.87/766,480.52
  6. Step 6: Final answer
    x = 582,890.05

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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.