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Finding the Fourth Proportional to 605,428.27, 835,495.28 and 347,316.48

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Solution

The fourth proportional to 605,428.27, 835,495.28 and 347,316.48 is: 479,299.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,428.27 : 835,495.28 = 347,316.48 : x
  2. Step 2: Convert to fraction form
    605,428.27/835,495.28 = 347,316.48/x
  3. Step 3: Cross multiply
    605,428.27x = 835,495.28 × 347,316.48
  4. Step 4: Simplify right side
    605,428.27x = 290,181,282,598.73
  5. Step 5: Solve for x
    x = 290,181,282,598.73/605,428.27
  6. Step 6: Final answer
    x = 479,299.19

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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.