Home / 722,201.34-996,637.24-399,911.43

Finding the Fourth Proportional to 722,201.34, 996,637.24 and 399,911.43

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Solution

The fourth proportional to 722,201.34, 996,637.24 and 399,911.43 is: 551,877.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,201.34 : 996,637.24 = 399,911.43 : x
  2. Step 2: Convert to fraction form
    722,201.34/996,637.24 = 399,911.43/x
  3. Step 3: Cross multiply
    722,201.34x = 996,637.24 × 399,911.43
  4. Step 4: Simplify right side
    722,201.34x = 398,566,623,839.65
  5. Step 5: Solve for x
    x = 398,566,623,839.65/722,201.34
  6. Step 6: Final answer
    x = 551,877.44

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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.