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Finding the Fourth Proportional to 615,277.78, 849,083.37 and 339,635.71

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Solution

The fourth proportional to 615,277.78, 849,083.37 and 339,635.71 is: 468,697.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,277.78 : 849,083.37 = 339,635.71 : x
  2. Step 2: Convert to fraction form
    615,277.78/849,083.37 = 339,635.71/x
  3. Step 3: Cross multiply
    615,277.78x = 849,083.37 × 339,635.71
  4. Step 4: Simplify right side
    615,277.78x = 288,379,028,124.64
  5. Step 5: Solve for x
    x = 288,379,028,124.64/615,277.78
  6. Step 6: Final answer
    x = 468,697.29

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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.