Home / 862,216.36-1,189,858.95-499,850.30

Finding the Fourth Proportional to 862,216.36, 1,189,858.95 and 499,850.30

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Solution

The fourth proportional to 862,216.36, 1,189,858.95 and 499,850.30 is: 689,793.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,216.36 : 1,189,858.95 = 499,850.30 : x
  2. Step 2: Convert to fraction form
    862,216.36/1,189,858.95 = 499,850.30/x
  3. Step 3: Cross multiply
    862,216.36x = 1,189,858.95 × 499,850.30
  4. Step 4: Simplify right side
    862,216.36x = 594,751,356,089.83
  5. Step 5: Solve for x
    x = 594,751,356,089.83/862,216.36
  6. Step 6: Final answer
    x = 689,793.64

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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.