Home / 921,870.60-1,383,431.04-322,836.72

Finding the Fourth Proportional to 921,870.60, 1,383,431.04 and 322,836.72

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Solution

The fourth proportional to 921,870.60, 1,383,431.04 and 322,836.72 is: 484,474.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,870.60 : 1,383,431.04 = 322,836.72 : x
  2. Step 2: Convert to fraction form
    921,870.60/1,383,431.04 = 322,836.72/x
  3. Step 3: Cross multiply
    921,870.60x = 1,383,431.04 × 322,836.72
  4. Step 4: Simplify right side
    921,870.60x = 446,622,339,299.79
  5. Step 5: Solve for x
    x = 446,622,339,299.79/921,870.60
  6. Step 6: Final answer
    x = 484,474.00

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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.