Home / 1,121,425.88-1,682,057.43-438,184.30

Finding the Fourth Proportional to 1,121,425.88, 1,682,057.43 and 438,184.30

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Solution

The fourth proportional to 1,121,425.88, 1,682,057.43 and 438,184.30 is: 657,244.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,425.88 : 1,682,057.43 = 438,184.30 : x
  2. Step 2: Convert to fraction form
    1,121,425.88/1,682,057.43 = 438,184.30/x
  3. Step 3: Cross multiply
    1,121,425.88x = 1,682,057.43 × 438,184.30
  4. Step 4: Simplify right side
    1,121,425.88x = 737,051,153,319.21
  5. Step 5: Solve for x
    x = 737,051,153,319.21/1,121,425.88
  6. Step 6: Final answer
    x = 657,244.64

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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.