Home / 1,121,467.80-1,682,120.08-438,226.68

Finding the Fourth Proportional to 1,121,467.80, 1,682,120.08 and 438,226.68

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Solution

The fourth proportional to 1,121,467.80, 1,682,120.08 and 438,226.68 is: 657,308.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,467.80 : 1,682,120.08 = 438,226.68 : x
  2. Step 2: Convert to fraction form
    1,121,467.80/1,682,120.08 = 438,226.68/x
  3. Step 3: Cross multiply
    1,121,467.80x = 1,682,120.08 × 438,226.68
  4. Step 4: Simplify right side
    1,121,467.80x = 737,149,898,019.73
  5. Step 5: Solve for x
    x = 737,149,898,019.73/1,121,467.80
  6. Step 6: Final answer
    x = 657,308.13

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Double scale
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1.5x scale

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.