Home / 670,496.20-1,005,530.46-221,133.31

Finding the Fourth Proportional to 670,496.20, 1,005,530.46 and 221,133.31

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Solution

The fourth proportional to 670,496.20, 1,005,530.46 and 221,133.31 is: 331,629.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,496.20 : 1,005,530.46 = 221,133.31 : x
  2. Step 2: Convert to fraction form
    670,496.20/1,005,530.46 = 221,133.31/x
  3. Step 3: Cross multiply
    670,496.20x = 1,005,530.46 × 221,133.31
  4. Step 4: Simplify right side
    670,496.20x = 222,356,278,925.62
  5. Step 5: Solve for x
    x = 222,356,278,925.62/670,496.20
  6. Step 6: Final answer
    x = 331,629.44

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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.