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Finding the Fourth Proportional to 817,710, 1,226,576.04 and 256,744.56

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Solution

The fourth proportional to 817,710, 1,226,576.04 and 256,744.56 is: 385,120.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,710 : 1,226,576.04 = 256,744.56 : x
  2. Step 2: Convert to fraction form
    817,710/1,226,576.04 = 256,744.56/x
  3. Step 3: Cross multiply
    817,710x = 1,226,576.04 × 256,744.56
  4. Step 4: Simplify right side
    817,710x = 314,916,725,696.34
  5. Step 5: Solve for x
    x = 314,916,725,696.34/817,710
  6. Step 6: Final answer
    x = 385,120.31

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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.