Home / 1,284,187.28-1,926,281.55-324,645.80

Finding the Fourth Proportional to 1,284,187.28, 1,926,281.55 and 324,645.80

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Solution

The fourth proportional to 1,284,187.28, 1,926,281.55 and 324,645.80 is: 486,968.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,284,187.28 : 1,926,281.55 = 324,645.80 : x
  2. Step 2: Convert to fraction form
    1,284,187.28/1,926,281.55 = 324,645.80/x
  3. Step 3: Cross multiply
    1,284,187.28x = 1,926,281.55 × 324,645.80
  4. Step 4: Simplify right side
    1,284,187.28x = 625,359,214,824.99
  5. Step 5: Solve for x
    x = 625,359,214,824.99/1,284,187.28
  6. Step 6: Final answer
    x = 486,968.86

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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.