Home / 670,289.38-1,005,499.68-220,826.86

Finding the Fourth Proportional to 670,289.38, 1,005,499.68 and 220,826.86

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Solution

The fourth proportional to 670,289.38, 1,005,499.68 and 220,826.86 is: 331,261.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,289.38 : 1,005,499.68 = 220,826.86 : x
  2. Step 2: Convert to fraction form
    670,289.38/1,005,499.68 = 220,826.86/x
  3. Step 3: Cross multiply
    670,289.38x = 1,005,499.68 × 220,826.86
  4. Step 4: Simplify right side
    670,289.38x = 222,041,333,723.56
  5. Step 5: Solve for x
    x = 222,041,333,723.56/670,289.38
  6. Step 6: Final answer
    x = 331,261.90

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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.