Home / 862,209.45-1,189,849.37-499,843.37

Finding the Fourth Proportional to 862,209.45, 1,189,849.37 and 499,843.37

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Solution

The fourth proportional to 862,209.45, 1,189,849.37 and 499,843.37 is: 689,784.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,209.45 : 1,189,849.37 = 499,843.37 : x
  2. Step 2: Convert to fraction form
    862,209.45/1,189,849.37 = 499,843.37/x
  3. Step 3: Cross multiply
    862,209.45x = 1,189,849.37 × 499,843.37
  4. Step 4: Simplify right side
    862,209.45x = 594,738,310,444.71
  5. Step 5: Solve for x
    x = 594,738,310,444.71/862,209.45
  6. Step 6: Final answer
    x = 689,784.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.