Home / 1,368,632.45-2,053,242.09-409,163.15

Finding the Fourth Proportional to 1,368,632.45, 2,053,242.09 and 409,163.15

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Solution

The fourth proportional to 1,368,632.45, 2,053,242.09 and 409,163.15 is: 613,832.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,368,632.45 : 2,053,242.09 = 409,163.15 : x
  2. Step 2: Convert to fraction form
    1,368,632.45/2,053,242.09 = 409,163.15/x
  3. Step 3: Cross multiply
    1,368,632.45x = 2,053,242.09 × 409,163.15
  4. Step 4: Simplify right side
    1,368,632.45x = 840,110,990,990.77
  5. Step 5: Solve for x
    x = 840,110,990,990.77/1,368,632.45
  6. Step 6: Final answer
    x = 613,832.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.