Home / 670,431.14-1,005,677.72-221,191.26

Finding the Fourth Proportional to 670,431.14, 1,005,677.72 and 221,191.26

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Solution

The fourth proportional to 670,431.14, 1,005,677.72 and 221,191.26 is: 331,797.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,431.14 : 1,005,677.72 = 221,191.26 : x
  2. Step 2: Convert to fraction form
    670,431.14/1,005,677.72 = 221,191.26/x
  3. Step 3: Cross multiply
    670,431.14x = 1,005,677.72 × 221,191.26
  4. Step 4: Simplify right side
    670,431.14x = 222,447,122,040.73
  5. Step 5: Solve for x
    x = 222,447,122,040.73/670,431.14
  6. Step 6: Final answer
    x = 331,797.12

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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.