Home / 689,361.56-951,305.28-383,431.35

Finding the Fourth Proportional to 689,361.56, 951,305.28 and 383,431.35

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Solution

The fourth proportional to 689,361.56, 951,305.28 and 383,431.35 is: 529,127.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,361.56 : 951,305.28 = 383,431.35 : x
  2. Step 2: Convert to fraction form
    689,361.56/951,305.28 = 383,431.35/x
  3. Step 3: Cross multiply
    689,361.56x = 951,305.28 × 383,431.35
  4. Step 4: Simplify right side
    689,361.56x = 364,760,269,902.06
  5. Step 5: Solve for x
    x = 364,760,269,902.06/689,361.56
  6. Step 6: Final answer
    x = 529,127.66

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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.