Home / 856,485.20-1,284,625.20-225,448.76

Finding the Fourth Proportional to 856,485.20, 1,284,625.20 and 225,448.76

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Solution

The fourth proportional to 856,485.20, 1,284,625.20 and 225,448.76 is: 338,146.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,485.20 : 1,284,625.20 = 225,448.76 : x
  2. Step 2: Convert to fraction form
    856,485.20/1,284,625.20 = 225,448.76/x
  3. Step 3: Cross multiply
    856,485.20x = 1,284,625.20 × 225,448.76
  4. Step 4: Simplify right side
    856,485.20x = 289,617,158,404.75
  5. Step 5: Solve for x
    x = 289,617,158,404.75/856,485.20
  6. Step 6: Final answer
    x = 338,146.13

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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.