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Finding the Fourth Proportional to 404,906, 607,727.34 and 215,525.58

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Solution

The fourth proportional to 404,906, 607,727.34 and 215,525.58 is: 323,484.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,906 : 607,727.34 = 215,525.58 : x
  2. Step 2: Convert to fraction form
    404,906/607,727.34 = 215,525.58/x
  3. Step 3: Cross multiply
    404,906x = 607,727.34 × 215,525.58
  4. Step 4: Simplify right side
    404,906x = 130,980,787,435.36
  5. Step 5: Solve for x
    x = 130,980,787,435.36/404,906
  6. Step 6: Final answer
    x = 323,484.43

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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.