Home / 817,102.97-1,225,851.29-256,137.47

Finding the Fourth Proportional to 817,102.97, 1,225,851.29 and 256,137.47

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Solution

The fourth proportional to 817,102.97, 1,225,851.29 and 256,137.47 is: 384,267.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,102.97 : 1,225,851.29 = 256,137.47 : x
  2. Step 2: Convert to fraction form
    817,102.97/1,225,851.29 = 256,137.47/x
  3. Step 3: Cross multiply
    817,102.97x = 1,225,851.29 × 256,137.47
  4. Step 4: Simplify right side
    817,102.97x = 313,986,440,606.89
  5. Step 5: Solve for x
    x = 313,986,440,606.89/817,102.97
  6. Step 6: Final answer
    x = 384,267.90

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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.