Home / 667,759.40-921,827.16-381,224.14

Finding the Fourth Proportional to 667,759.40, 921,827.16 and 381,224.14

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Solution

The fourth proportional to 667,759.40, 921,827.16 and 381,224.14 is: 526,271.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,759.40 : 921,827.16 = 381,224.14 : x
  2. Step 2: Convert to fraction form
    667,759.40/921,827.16 = 381,224.14/x
  3. Step 3: Cross multiply
    667,759.40x = 921,827.16 × 381,224.14
  4. Step 4: Simplify right side
    667,759.40x = 351,422,766,299.64
  5. Step 5: Solve for x
    x = 351,422,766,299.64/667,759.40
  6. Step 6: Final answer
    x = 526,271.54

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1.5x scale

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.