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Finding the Fourth Proportional to 439,896, 607,056.48 and 238,692

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Solution

The fourth proportional to 439,896, 607,056.48 and 238,692 is: 329,394.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,896 : 607,056.48 = 238,692 : x
  2. Step 2: Convert to fraction form
    439,896/607,056.48 = 238,692/x
  3. Step 3: Cross multiply
    439,896x = 607,056.48 × 238,692
  4. Step 4: Simplify right side
    439,896x = 144,899,525,324.16
  5. Step 5: Solve for x
    x = 144,899,525,324.16/439,896
  6. Step 6: Final answer
    x = 329,394.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.