Home / 1,420,869.35-2,131,447.55-461,284.83

Finding the Fourth Proportional to 1,420,869.35, 2,131,447.55 and 461,284.83

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Solution

The fourth proportional to 1,420,869.35, 2,131,447.55 and 461,284.83 is: 691,973.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,869.35 : 2,131,447.55 = 461,284.83 : x
  2. Step 2: Convert to fraction form
    1,420,869.35/2,131,447.55 = 461,284.83/x
  3. Step 3: Cross multiply
    1,420,869.35x = 2,131,447.55 × 461,284.83
  4. Step 4: Simplify right side
    1,420,869.35x = 983,204,421,908.88
  5. Step 5: Solve for x
    x = 983,204,421,908.88/1,420,869.35
  6. Step 6: Final answer
    x = 691,973.84

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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.