Home / 728,498.45-1,092,124.38-279,541.49

Finding the Fourth Proportional to 728,498.45, 1,092,124.38 and 279,541.49

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Solution

The fourth proportional to 728,498.45, 1,092,124.38 and 279,541.49 is: 419,073.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,498.45 : 1,092,124.38 = 279,541.49 : x
  2. Step 2: Convert to fraction form
    728,498.45/1,092,124.38 = 279,541.49/x
  3. Step 3: Cross multiply
    728,498.45x = 1,092,124.38 × 279,541.49
  4. Step 4: Simplify right side
    728,498.45x = 305,294,076,450.53
  5. Step 5: Solve for x
    x = 305,294,076,450.53/728,498.45
  6. Step 6: Final answer
    x = 419,073.06

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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.