Home / 766,744.54-1,058,064.35-422,579.45

Finding the Fourth Proportional to 766,744.54, 1,058,064.35 and 422,579.45

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Solution

The fourth proportional to 766,744.54, 1,058,064.35 and 422,579.45 is: 583,135.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,744.54 : 1,058,064.35 = 422,579.45 : x
  2. Step 2: Convert to fraction form
    766,744.54/1,058,064.35 = 422,579.45/x
  3. Step 3: Cross multiply
    766,744.54x = 1,058,064.35 × 422,579.45
  4. Step 4: Simplify right side
    766,744.54x = 447,116,251,619.87
  5. Step 5: Solve for x
    x = 447,116,251,619.87/766,744.54
  6. Step 6: Final answer
    x = 583,135.88

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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.