Home / 722,085.58-996,493.20-395,412.38

Finding the Fourth Proportional to 722,085.58, 996,493.20 and 395,412.38

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Solution

The fourth proportional to 722,085.58, 996,493.20 and 395,412.38 is: 545,677.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,085.58 : 996,493.20 = 395,412.38 : x
  2. Step 2: Convert to fraction form
    722,085.58/996,493.20 = 395,412.38/x
  3. Step 3: Cross multiply
    722,085.58x = 996,493.20 × 395,412.38
  4. Step 4: Simplify right side
    722,085.58x = 394,025,747,865.82
  5. Step 5: Solve for x
    x = 394,025,747,865.82/722,085.58
  6. Step 6: Final answer
    x = 545,677.35

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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.