Home / 766,849.60-1,058,247.18-422,685.82

Finding the Fourth Proportional to 766,849.60, 1,058,247.18 and 422,685.82

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Solution

The fourth proportional to 766,849.60, 1,058,247.18 and 422,685.82 is: 583,303.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,849.60 : 1,058,247.18 = 422,685.82 : x
  2. Step 2: Convert to fraction form
    766,849.60/1,058,247.18 = 422,685.82/x
  3. Step 3: Cross multiply
    766,849.60x = 1,058,247.18 × 422,685.82
  4. Step 4: Simplify right side
    766,849.60x = 447,306,077,040.99
  5. Step 5: Solve for x
    x = 447,306,077,040.99/766,849.60
  6. Step 6: Final answer
    x = 583,303.53

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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.