Home / 427,330.62-641,032.38-111,787.02

Finding the Fourth Proportional to 427,330.62, 641,032.38 and 111,787.02

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Solution

The fourth proportional to 427,330.62, 641,032.38 and 111,787.02 is: 167,690.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,330.62 : 641,032.38 = 111,787.02 : x
  2. Step 2: Convert to fraction form
    427,330.62/641,032.38 = 111,787.02/x
  3. Step 3: Cross multiply
    427,330.62x = 641,032.38 × 111,787.02
  4. Step 4: Simplify right side
    427,330.62x = 71,659,099,483.71
  5. Step 5: Solve for x
    x = 71,659,099,483.71/427,330.62
  6. Step 6: Final answer
    x = 167,690.07

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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.