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Finding the Fourth Proportional to 439,066.37, 654,889.71 and 425,776.70

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Solution

The fourth proportional to 439,066.37, 654,889.71 and 425,776.70 is: 635,067.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,066.37 : 654,889.71 = 425,776.70 : x
  2. Step 2: Convert to fraction form
    439,066.37/654,889.71 = 425,776.70/x
  3. Step 3: Cross multiply
    439,066.37x = 654,889.71 × 425,776.70
  4. Step 4: Simplify right side
    439,066.37x = 278,836,780,426.65
  5. Step 5: Solve for x
    x = 278,836,780,426.65/439,066.37
  6. Step 6: Final answer
    x = 635,067.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.