Home / 821,789.50-1,134,048.37-459,216.33

Finding the Fourth Proportional to 821,789.50, 1,134,048.37 and 459,216.33

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Solution

The fourth proportional to 821,789.50, 1,134,048.37 and 459,216.33 is: 633,706.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,789.50 : 1,134,048.37 = 459,216.33 : x
  2. Step 2: Convert to fraction form
    821,789.50/1,134,048.37 = 459,216.33/x
  3. Step 3: Cross multiply
    821,789.50x = 1,134,048.37 × 459,216.33
  4. Step 4: Simplify right side
    821,789.50x = 520,773,530,513.88
  5. Step 5: Solve for x
    x = 520,773,530,513.88/821,789.50
  6. Step 6: Final answer
    x = 633,706.72

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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.