Home / 856,508.42-1,284,763.56-257,469.53

Finding the Fourth Proportional to 856,508.42, 1,284,763.56 and 257,469.53

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Solution

The fourth proportional to 856,508.42, 1,284,763.56 and 257,469.53 is: 386,204.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,508.42 : 1,284,763.56 = 257,469.53 : x
  2. Step 2: Convert to fraction form
    856,508.42/1,284,763.56 = 257,469.53/x
  3. Step 3: Cross multiply
    856,508.42x = 1,284,763.56 × 257,469.53
  4. Step 4: Simplify right side
    856,508.42x = 330,787,463,530.51
  5. Step 5: Solve for x
    x = 330,787,463,530.51/856,508.42
  6. Step 6: Final answer
    x = 386,204.57

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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.