Home / 1,284,937.37-1,926,049.74-431,199.55

Finding the Fourth Proportional to 1,284,937.37, 1,926,049.74 and 431,199.55

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Solution

The fourth proportional to 1,284,937.37, 1,926,049.74 and 431,199.55 is: 646,344.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,284,937.37 : 1,926,049.74 = 431,199.55 : x
  2. Step 2: Convert to fraction form
    1,284,937.37/1,926,049.74 = 431,199.55/x
  3. Step 3: Cross multiply
    1,284,937.37x = 1,926,049.74 × 431,199.55
  4. Step 4: Simplify right side
    1,284,937.37x = 830,511,784,381.68
  5. Step 5: Solve for x
    x = 830,511,784,381.68/1,284,937.37
  6. Step 6: Final answer
    x = 646,344.17

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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.