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Finding the Fourth Proportional to 605,129.69, 907,777.73 and 205,663.25

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Solution

The fourth proportional to 605,129.69, 907,777.73 and 205,663.25 is: 308,523.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,129.69 : 907,777.73 = 205,663.25 : x
  2. Step 2: Convert to fraction form
    605,129.69/907,777.73 = 205,663.25/x
  3. Step 3: Cross multiply
    605,129.69x = 907,777.73 × 205,663.25
  4. Step 4: Simplify right side
    605,129.69x = 186,696,514,204.69
  5. Step 5: Solve for x
    x = 186,696,514,204.69/605,129.69
  6. Step 6: Final answer
    x = 308,523.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.