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Finding the Fourth Proportional to 404,707.65, 558,497.37 and 223,419.83

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Solution

The fourth proportional to 404,707.65, 558,497.37 and 223,419.83 is: 308,319.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,707.65 : 558,497.37 = 223,419.83 : x
  2. Step 2: Convert to fraction form
    404,707.65/558,497.37 = 223,419.83/x
  3. Step 3: Cross multiply
    404,707.65x = 558,497.37 × 223,419.83
  4. Step 4: Simplify right side
    404,707.65x = 124,779,384,668.36
  5. Step 5: Solve for x
    x = 124,779,384,668.36/404,707.65
  6. Step 6: Final answer
    x = 308,319.81

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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.