Home / 285,669.79-428,588.52-127,863.16

Finding the Fourth Proportional to 285,669.79, 428,588.52 and 127,863.16

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Solution

The fourth proportional to 285,669.79, 428,588.52 and 127,863.16 is: 191,832.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,669.79 : 428,588.52 = 127,863.16 : x
  2. Step 2: Convert to fraction form
    285,669.79/428,588.52 = 127,863.16/x
  3. Step 3: Cross multiply
    285,669.79x = 428,588.52 × 127,863.16
  4. Step 4: Simplify right side
    285,669.79x = 54,800,682,506.92
  5. Step 5: Solve for x
    x = 54,800,682,506.92/285,669.79
  6. Step 6: Final answer
    x = 191,832.26

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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.