Home / 817,755.91-1,226,683.07-256,790.41

Finding the Fourth Proportional to 817,755.91, 1,226,683.07 and 256,790.41

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Solution

The fourth proportional to 817,755.91, 1,226,683.07 and 256,790.41 is: 385,201.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,755.91 : 1,226,683.07 = 256,790.41 : x
  2. Step 2: Convert to fraction form
    817,755.91/1,226,683.07 = 256,790.41/x
  3. Step 3: Cross multiply
    817,755.91x = 1,226,683.07 × 256,790.41
  4. Step 4: Simplify right side
    817,755.91x = 315,000,448,485.36
  5. Step 5: Solve for x
    x = 315,000,448,485.36/817,755.91
  6. Step 6: Final answer
    x = 385,201.07

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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.