Home / 766,889.56-1,058,315.04-422,738.92

Finding the Fourth Proportional to 766,889.56, 1,058,315.04 and 422,738.92

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Solution

The fourth proportional to 766,889.56, 1,058,315.04 and 422,738.92 is: 583,383.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,889.56 : 1,058,315.04 = 422,738.92 : x
  2. Step 2: Convert to fraction form
    766,889.56/1,058,315.04 = 422,738.92/x
  3. Step 3: Cross multiply
    766,889.56x = 1,058,315.04 × 422,738.92
  4. Step 4: Simplify right side
    766,889.56x = 447,390,957,029.36
  5. Step 5: Solve for x
    x = 447,390,957,029.36/766,889.56
  6. Step 6: Final answer
    x = 583,383.81

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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.