Home / 766,767.49-1,058,199.96-422,664.60

Finding the Fourth Proportional to 766,767.49, 1,058,199.96 and 422,664.60

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Solution

The fourth proportional to 766,767.49, 1,058,199.96 and 422,664.60 is: 583,310.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,767.49 : 1,058,199.96 = 422,664.60 : x
  2. Step 2: Convert to fraction form
    766,767.49/1,058,199.96 = 422,664.60/x
  3. Step 3: Cross multiply
    766,767.49x = 1,058,199.96 × 422,664.60
  4. Step 4: Simplify right side
    766,767.49x = 447,263,662,813.42
  5. Step 5: Solve for x
    x = 447,263,662,813.42/766,767.49
  6. Step 6: Final answer
    x = 583,310.68

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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.