Home / 856,640.24-1,284,056.13-287,481.68

Finding the Fourth Proportional to 856,640.24, 1,284,056.13 and 287,481.68

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Solution

The fourth proportional to 856,640.24, 1,284,056.13 and 287,481.68 is: 430,919.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,640.24 : 1,284,056.13 = 287,481.68 : x
  2. Step 2: Convert to fraction form
    856,640.24/1,284,056.13 = 287,481.68/x
  3. Step 3: Cross multiply
    856,640.24x = 1,284,056.13 × 287,481.68
  4. Step 4: Simplify right side
    856,640.24x = 369,142,613,466.70
  5. Step 5: Solve for x
    x = 369,142,613,466.70/856,640.24
  6. Step 6: Final answer
    x = 430,919.07

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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.