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Finding the Fourth Proportional to 404,980.86, 558,870.93 and 223,704.48

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Solution

The fourth proportional to 404,980.86, 558,870.93 and 223,704.48 is: 308,710.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,980.86 : 558,870.93 = 223,704.48 : x
  2. Step 2: Convert to fraction form
    404,980.86/558,870.93 = 223,704.48/x
  3. Step 3: Cross multiply
    404,980.86x = 558,870.93 × 223,704.48
  4. Step 4: Simplify right side
    404,980.86x = 125,021,930,782.77
  5. Step 5: Solve for x
    x = 125,021,930,782.77/404,980.86
  6. Step 6: Final answer
    x = 308,710.71

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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.