Home / 726,613.44-1,002,735.54-399,964.20

Finding the Fourth Proportional to 726,613.44, 1,002,735.54 and 399,964.20

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Solution

The fourth proportional to 726,613.44, 1,002,735.54 and 399,964.20 is: 551,955.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,613.44 : 1,002,735.54 = 399,964.20 : x
  2. Step 2: Convert to fraction form
    726,613.44/1,002,735.54 = 399,964.20/x
  3. Step 3: Cross multiply
    726,613.44x = 1,002,735.54 × 399,964.20
  4. Step 4: Simplify right side
    726,613.44x = 401,058,318,067.67
  5. Step 5: Solve for x
    x = 401,058,318,067.67/726,613.44
  6. Step 6: Final answer
    x = 551,955.55

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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.