Home / 1,107,390.08-1,661,121-349,238.86

Finding the Fourth Proportional to 1,107,390.08, 1,661,121 and 349,238.86

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Solution

The fourth proportional to 1,107,390.08, 1,661,121 and 349,238.86 is: 523,869.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,107,390.08 : 1,661,121 = 349,238.86 : x
  2. Step 2: Convert to fraction form
    1,107,390.08/1,661,121 = 349,238.86/x
  3. Step 3: Cross multiply
    1,107,390.08x = 1,661,121 × 349,238.86
  4. Step 4: Simplify right side
    1,107,390.08x = 580,128,004,362.06
  5. Step 5: Solve for x
    x = 580,128,004,362.06/1,107,390.08
  6. Step 6: Final answer
    x = 523,869.61

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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.