Home / 670,147.56-1,005,207.51-220,895.40

Finding the Fourth Proportional to 670,147.56, 1,005,207.51 and 220,895.40

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Solution

The fourth proportional to 670,147.56, 1,005,207.51 and 220,895.40 is: 331,338.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,147.56 : 1,005,207.51 = 220,895.40 : x
  2. Step 2: Convert to fraction form
    670,147.56/1,005,207.51 = 220,895.40/x
  3. Step 3: Cross multiply
    670,147.56x = 1,005,207.51 × 220,895.40
  4. Step 4: Simplify right side
    670,147.56x = 222,045,715,004.45
  5. Step 5: Solve for x
    x = 222,045,715,004.45/670,147.56
  6. Step 6: Final answer
    x = 331,338.54

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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.