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Finding the Fourth Proportional to 636,164.13, 877,896.66 and 349,678.06

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Solution

The fourth proportional to 636,164.13, 877,896.66 and 349,678.06 is: 482,550.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,164.13 : 877,896.66 = 349,678.06 : x
  2. Step 2: Convert to fraction form
    636,164.13/877,896.66 = 349,678.06/x
  3. Step 3: Cross multiply
    636,164.13x = 877,896.66 × 349,678.06
  4. Step 4: Simplify right side
    636,164.13x = 306,981,202,053.58
  5. Step 5: Solve for x
    x = 306,981,202,053.58/636,164.13
  6. Step 6: Final answer
    x = 482,550.32

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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.