Home / 692,231.56-1,038,340.42-218,917

Finding the Fourth Proportional to 692,231.56, 1,038,340.42 and 218,917

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Solution

The fourth proportional to 692,231.56, 1,038,340.42 and 218,917 is: 328,373.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,231.56 : 1,038,340.42 = 218,917 : x
  2. Step 2: Convert to fraction form
    692,231.56/1,038,340.42 = 218,917/x
  3. Step 3: Cross multiply
    692,231.56x = 1,038,340.42 × 218,917
  4. Step 4: Simplify right side
    692,231.56x = 227,310,369,725.14
  5. Step 5: Solve for x
    x = 227,310,369,725.14/692,231.56
  6. Step 6: Final answer
    x = 328,373.31

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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.