Home / 407,707.20-611,567.16-123,400.83

Finding the Fourth Proportional to 407,707.20, 611,567.16 and 123,400.83

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Solution

The fourth proportional to 407,707.20, 611,567.16 and 123,400.83 is: 185,103.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,707.20 : 611,567.16 = 123,400.83 : x
  2. Step 2: Convert to fraction form
    407,707.20/611,567.16 = 123,400.83/x
  3. Step 3: Cross multiply
    407,707.20x = 611,567.16 × 123,400.83
  4. Step 4: Simplify right side
    407,707.20x = 75,467,895,144.74
  5. Step 5: Solve for x
    x = 75,467,895,144.74/407,707.20
  6. Step 6: Final answer
    x = 185,103.17

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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.