Home / 766,715.27-1,058,074.25-422,563.82

Finding the Fourth Proportional to 766,715.27, 1,058,074.25 and 422,563.82

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Solution

The fourth proportional to 766,715.27, 1,058,074.25 and 422,563.82 is: 583,142.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,715.27 : 1,058,074.25 = 422,563.82 : x
  2. Step 2: Convert to fraction form
    766,715.27/1,058,074.25 = 422,563.82/x
  3. Step 3: Cross multiply
    766,715.27x = 1,058,074.25 × 422,563.82
  4. Step 4: Simplify right side
    766,715.27x = 447,103,889,520.45
  5. Step 5: Solve for x
    x = 447,103,889,520.45/766,715.27
  6. Step 6: Final answer
    x = 583,142.02

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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.