Home / 689,787.42-951,899.78-383,858.58

Finding the Fourth Proportional to 689,787.42, 951,899.78 and 383,858.58

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Solution

The fourth proportional to 689,787.42, 951,899.78 and 383,858.58 is: 529,721.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,787.42 : 951,899.78 = 383,858.58 : x
  2. Step 2: Convert to fraction form
    689,787.42/951,899.78 = 383,858.58/x
  3. Step 3: Cross multiply
    689,787.42x = 951,899.78 × 383,858.58
  4. Step 4: Simplify right side
    689,787.42x = 365,394,897,853.11
  5. Step 5: Solve for x
    x = 365,394,897,853.11/689,787.42
  6. Step 6: Final answer
    x = 529,721.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.