Home / 726,685.45-1,002,818.67-404,390.03

Finding the Fourth Proportional to 726,685.45, 1,002,818.67 and 404,390.03

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Solution

The fourth proportional to 726,685.45, 1,002,818.67 and 404,390.03 is: 558,054.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,685.45 : 1,002,818.67 = 404,390.03 : x
  2. Step 2: Convert to fraction form
    726,685.45/1,002,818.67 = 404,390.03/x
  3. Step 3: Cross multiply
    726,685.45x = 1,002,818.67 × 404,390.03
  4. Step 4: Simplify right side
    726,685.45x = 405,529,871,550.57
  5. Step 5: Solve for x
    x = 405,529,871,550.57/726,685.45
  6. Step 6: Final answer
    x = 558,054.20

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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.