Home / 862,163.48-1,189,785.83-499,798.24

Finding the Fourth Proportional to 862,163.48, 1,189,785.83 and 499,798.24

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Solution

The fourth proportional to 862,163.48, 1,189,785.83 and 499,798.24 is: 689,721.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,163.48 : 1,189,785.83 = 499,798.24 : x
  2. Step 2: Convert to fraction form
    862,163.48/1,189,785.83 = 499,798.24/x
  3. Step 3: Cross multiply
    862,163.48x = 1,189,785.83 × 499,798.24
  4. Step 4: Simplify right side
    862,163.48x = 594,652,861,148.85
  5. Step 5: Solve for x
    x = 594,652,861,148.85/862,163.48
  6. Step 6: Final answer
    x = 689,721.70

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Double scale
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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.