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Finding the Fourth Proportional to 605,456.73, 835,487.15 and 360,428.49

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Solution

The fourth proportional to 605,456.73, 835,487.15 and 360,428.49 is: 497,365.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,456.73 : 835,487.15 = 360,428.49 : x
  2. Step 2: Convert to fraction form
    605,456.73/835,487.15 = 360,428.49/x
  3. Step 3: Cross multiply
    605,456.73x = 835,487.15 × 360,428.49
  4. Step 4: Simplify right side
    605,456.73x = 301,133,370,086.76
  5. Step 5: Solve for x
    x = 301,133,370,086.76/605,456.73
  6. Step 6: Final answer
    x = 497,365.63

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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.