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Finding the Fourth Proportional to 635,668.70, 877,233.39 and 345,280.83

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Solution

The fourth proportional to 635,668.70, 877,233.39 and 345,280.83 is: 476,493.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,668.70 : 877,233.39 = 345,280.83 : x
  2. Step 2: Convert to fraction form
    635,668.70/877,233.39 = 345,280.83/x
  3. Step 3: Cross multiply
    635,668.70x = 877,233.39 × 345,280.83
  4. Step 4: Simplify right side
    635,668.70x = 302,891,870,360.69
  5. Step 5: Solve for x
    x = 302,891,870,360.69/635,668.70
  6. Step 6: Final answer
    x = 476,493.29

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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.