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Finding the Fourth Proportional to 439,873, 607,027.98 and 238,669

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Solution

The fourth proportional to 439,873, 607,027.98 and 238,669 is: 329,364.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,873 : 607,027.98 = 238,669 : x
  2. Step 2: Convert to fraction form
    439,873/607,027.98 = 238,669/x
  3. Step 3: Cross multiply
    439,873x = 607,027.98 × 238,669
  4. Step 4: Simplify right side
    439,873x = 144,878,760,958.62
  5. Step 5: Solve for x
    x = 144,878,760,958.62/439,873
  6. Step 6: Final answer
    x = 329,364.98

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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.