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Finding the Fourth Proportional to 439,425, 605,820.06 and 349,080.84

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Solution

The fourth proportional to 439,425, 605,820.06 and 349,080.84 is: 481,265.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,425 : 605,820.06 = 349,080.84 : x
  2. Step 2: Convert to fraction form
    439,425/605,820.06 = 349,080.84/x
  3. Step 3: Cross multiply
    439,425x = 605,820.06 × 349,080.84
  4. Step 4: Simplify right side
    439,425x = 211,480,175,433.65
  5. Step 5: Solve for x
    x = 211,480,175,433.65/439,425
  6. Step 6: Final answer
    x = 481,265.69

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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.