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Finding the Fourth Proportional to 610,591.03, 915,969.87 and 211,124.54

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Solution

The fourth proportional to 610,591.03, 915,969.87 and 211,124.54 is: 316,715.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,591.03 : 915,969.87 = 211,124.54 : x
  2. Step 2: Convert to fraction form
    610,591.03/915,969.87 = 211,124.54/x
  3. Step 3: Cross multiply
    610,591.03x = 915,969.87 × 211,124.54
  4. Step 4: Simplify right side
    610,591.03x = 193,383,719,747.54
  5. Step 5: Solve for x
    x = 193,383,719,747.54/610,591.03
  6. Step 6: Final answer
    x = 316,715.63

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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.