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Finding the Fourth Proportional to 424,438.85, 636,838.33 and 199,794.33

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Solution

The fourth proportional to 424,438.85, 636,838.33 and 199,794.33 is: 299,776.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,438.85 : 636,838.33 = 199,794.33 : x
  2. Step 2: Convert to fraction form
    424,438.85/636,838.33 = 199,794.33/x
  3. Step 3: Cross multiply
    424,438.85x = 636,838.33 × 199,794.33
  4. Step 4: Simplify right side
    424,438.85x = 127,236,687,460.67
  5. Step 5: Solve for x
    x = 127,236,687,460.67/424,438.85
  6. Step 6: Final answer
    x = 299,776.25

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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.