Home / 726,111.44-1,002,002.86-399,403.72

Finding the Fourth Proportional to 726,111.44, 1,002,002.86 and 399,403.72

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Solution

The fourth proportional to 726,111.44, 1,002,002.86 and 399,403.72 is: 551,160.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,111.44 : 1,002,002.86 = 399,403.72 : x
  2. Step 2: Convert to fraction form
    726,111.44/1,002,002.86 = 399,403.72/x
  3. Step 3: Cross multiply
    726,111.44x = 1,002,002.86 × 399,403.72
  4. Step 4: Simplify right side
    726,111.44x = 400,203,669,734.64
  5. Step 5: Solve for x
    x = 400,203,669,734.64/726,111.44
  6. Step 6: Final answer
    x = 551,160.12

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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.