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Finding the Fourth Proportional to 636,207.46, 877,967.34 and 349,729.36

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Solution

The fourth proportional to 636,207.46, 877,967.34 and 349,729.36 is: 482,627.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,207.46 : 877,967.34 = 349,729.36 : x
  2. Step 2: Convert to fraction form
    636,207.46/877,967.34 = 349,729.36/x
  3. Step 3: Cross multiply
    636,207.46x = 877,967.34 × 349,729.36
  4. Step 4: Simplify right side
    636,207.46x = 307,050,955,919.10
  5. Step 5: Solve for x
    x = 307,050,955,919.10/636,207.46
  6. Step 6: Final answer
    x = 482,627.09

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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.