Home / 722,427.84-996,939.42-395,738.22

Finding the Fourth Proportional to 722,427.84, 996,939.42 and 395,738.22

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Solution

The fourth proportional to 722,427.84, 996,939.42 and 395,738.22 is: 546,112.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,427.84 : 996,939.42 = 395,738.22 : x
  2. Step 2: Convert to fraction form
    722,427.84/996,939.42 = 395,738.22/x
  3. Step 3: Cross multiply
    722,427.84x = 996,939.42 × 395,738.22
  4. Step 4: Simplify right side
    722,427.84x = 394,527,031,518.63
  5. Step 5: Solve for x
    x = 394,527,031,518.63/722,427.84
  6. Step 6: Final answer
    x = 546,112.72

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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.