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Finding the Fourth Proportional to 615,330.31, 923,093.07 and 260,347

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Solution

The fourth proportional to 615,330.31, 923,093.07 and 260,347 is: 390,561.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,330.31 : 923,093.07 = 260,347 : x
  2. Step 2: Convert to fraction form
    615,330.31/923,093.07 = 260,347/x
  3. Step 3: Cross multiply
    615,330.31x = 923,093.07 × 260,347
  4. Step 4: Simplify right side
    615,330.31x = 240,324,511,495.29
  5. Step 5: Solve for x
    x = 240,324,511,495.29/615,330.31
  6. Step 6: Final answer
    x = 390,561.80

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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.