Home / 1,126,640.48-1,689,961.92-285,192.24

Finding the Fourth Proportional to 1,126,640.48, 1,689,961.92 and 285,192.24

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Solution

The fourth proportional to 1,126,640.48, 1,689,961.92 and 285,192.24 is: 427,788.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,126,640.48 : 1,689,961.92 = 285,192.24 : x
  2. Step 2: Convert to fraction form
    1,126,640.48/1,689,961.92 = 285,192.24/x
  3. Step 3: Cross multiply
    1,126,640.48x = 1,689,961.92 × 285,192.24
  4. Step 4: Simplify right side
    1,126,640.48x = 481,964,025,479.50
  5. Step 5: Solve for x
    x = 481,964,025,479.50/1,126,640.48
  6. Step 6: Final answer
    x = 427,788.66

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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.