Home / 726,497.80-1,002,566.67-399,810.81

Finding the Fourth Proportional to 726,497.80, 1,002,566.67 and 399,810.81

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Solution

The fourth proportional to 726,497.80, 1,002,566.67 and 399,810.81 is: 551,738.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,497.80 : 1,002,566.67 = 399,810.81 : x
  2. Step 2: Convert to fraction form
    726,497.80/1,002,566.67 = 399,810.81/x
  3. Step 3: Cross multiply
    726,497.80x = 1,002,566.67 × 399,810.81
  4. Step 4: Simplify right side
    726,497.80x = 400,836,994,698.65
  5. Step 5: Solve for x
    x = 400,836,994,698.65/726,497.80
  6. Step 6: Final answer
    x = 551,738.76

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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.