Home / 3,429,689.76-5,140,049.85-1,405,563.84

Finding the Fourth Proportional to 3,429,689.76, 5,140,049.85 and 1,405,563.84

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Solution

The fourth proportional to 3,429,689.76, 5,140,049.85 and 1,405,563.84 is: 2,106,507.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,429,689.76 : 5,140,049.85 = 1,405,563.84 : x
  2. Step 2: Convert to fraction form
    3,429,689.76/5,140,049.85 = 1,405,563.84/x
  3. Step 3: Cross multiply
    3,429,689.76x = 5,140,049.85 × 1,405,563.84
  4. Step 4: Simplify right side
    3,429,689.76x = 7,224,668,204,957.42
  5. Step 5: Solve for x
    x = 7,224,668,204,957.42/3,429,689.76
  6. Step 6: Final answer
    x = 2,106,507.79

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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.