Home / 670,455.33-1,005,821.55-221,203.68

Finding the Fourth Proportional to 670,455.33, 1,005,821.55 and 221,203.68

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Solution

The fourth proportional to 670,455.33, 1,005,821.55 and 221,203.68 is: 331,851.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,455.33 : 1,005,821.55 = 221,203.68 : x
  2. Step 2: Convert to fraction form
    670,455.33/1,005,821.55 = 221,203.68/x
  3. Step 3: Cross multiply
    670,455.33x = 1,005,821.55 × 221,203.68
  4. Step 4: Simplify right side
    670,455.33x = 222,491,428,283.30
  5. Step 5: Solve for x
    x = 222,491,428,283.30/670,455.33
  6. Step 6: Final answer
    x = 331,851.23

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1.5x scale

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.