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Finding the Fourth Proportional to 636,197.93, 877,954.09 and 349,719.76

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Solution

The fourth proportional to 636,197.93, 877,954.09 and 349,719.76 is: 482,613.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,197.93 : 877,954.09 = 349,719.76 : x
  2. Step 2: Convert to fraction form
    636,197.93/877,954.09 = 349,719.76/x
  3. Step 3: Cross multiply
    636,197.93x = 877,954.09 × 349,719.76
  4. Step 4: Simplify right side
    636,197.93x = 307,037,894,524.69
  5. Step 5: Solve for x
    x = 307,037,894,524.69/636,197.93
  6. Step 6: Final answer
    x = 482,613.79

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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.