Home / 1,379,529.38-2,069,605.46-420,070.76

Finding the Fourth Proportional to 1,379,529.38, 2,069,605.46 and 420,070.76

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Solution

The fourth proportional to 1,379,529.38, 2,069,605.46 and 420,070.76 is: 630,200.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,379,529.38 : 2,069,605.46 = 420,070.76 : x
  2. Step 2: Convert to fraction form
    1,379,529.38/2,069,605.46 = 420,070.76/x
  3. Step 3: Cross multiply
    1,379,529.38x = 2,069,605.46 × 420,070.76
  4. Step 4: Simplify right side
    1,379,529.38x = 869,380,741,556.01
  5. Step 5: Solve for x
    x = 869,380,741,556.01/1,379,529.38
  6. Step 6: Final answer
    x = 630,200.96

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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.