Home / 420,077.32-579,741.24-238,846.36

Finding the Fourth Proportional to 420,077.32, 579,741.24 and 238,846.36

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Solution

The fourth proportional to 420,077.32, 579,741.24 and 238,846.36 is: 329,627.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,077.32 : 579,741.24 = 238,846.36 : x
  2. Step 2: Convert to fraction form
    420,077.32/579,741.24 = 238,846.36/x
  3. Step 3: Cross multiply
    420,077.32x = 579,741.24 × 238,846.36
  4. Step 4: Simplify right side
    420,077.32x = 138,469,084,915.89
  5. Step 5: Solve for x
    x = 138,469,084,915.89/420,077.32
  6. Step 6: Final answer
    x = 329,627.61

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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.