Home / 817,756.41-1,226,683.83-256,790.91

Finding the Fourth Proportional to 817,756.41, 1,226,683.83 and 256,790.91

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Solution

The fourth proportional to 817,756.41, 1,226,683.83 and 256,790.91 is: 385,201.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,756.41 : 1,226,683.83 = 256,790.91 : x
  2. Step 2: Convert to fraction form
    817,756.41/1,226,683.83 = 256,790.91/x
  3. Step 3: Cross multiply
    817,756.41x = 1,226,683.83 × 256,790.91
  4. Step 4: Simplify right side
    817,756.41x = 315,001,256,987.99
  5. Step 5: Solve for x
    x = 315,001,256,987.99/817,756.41
  6. Step 6: Final answer
    x = 385,201.82

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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.