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Finding the Fourth Proportional to 782,576.28, 1,173,725.64 and 356,013

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Solution

The fourth proportional to 782,576.28, 1,173,725.64 and 356,013 is: 533,956.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,576.28 : 1,173,725.64 = 356,013 : x
  2. Step 2: Convert to fraction form
    782,576.28/1,173,725.64 = 356,013/x
  3. Step 3: Cross multiply
    782,576.28x = 1,173,725.64 × 356,013
  4. Step 4: Simplify right side
    782,576.28x = 417,861,586,273.32
  5. Step 5: Solve for x
    x = 417,861,586,273.32/782,576.28
  6. Step 6: Final answer
    x = 533,956.37

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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.