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Finding the Fourth Proportional to 636,199.42, 877,932.93 and 349,717.45

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Solution

The fourth proportional to 636,199.42, 877,932.93 and 349,717.45 is: 482,597.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,199.42 : 877,932.93 = 349,717.45 : x
  2. Step 2: Convert to fraction form
    636,199.42/877,932.93 = 349,717.45/x
  3. Step 3: Cross multiply
    636,199.42x = 877,932.93 × 349,717.45
  4. Step 4: Simplify right side
    636,199.42x = 307,028,465,550.63
  5. Step 5: Solve for x
    x = 307,028,465,550.63/636,199.42
  6. Step 6: Final answer
    x = 482,597.84

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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.