Home / 914,611.40-1,372,062.90-381,858.20

Finding the Fourth Proportional to 914,611.40, 1,372,062.90 and 381,858.20

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Solution

The fourth proportional to 914,611.40, 1,372,062.90 and 381,858.20 is: 572,848.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    914,611.40 : 1,372,062.90 = 381,858.20 : x
  2. Step 2: Convert to fraction form
    914,611.40/1,372,062.90 = 381,858.20/x
  3. Step 3: Cross multiply
    914,611.40x = 1,372,062.90 × 381,858.20
  4. Step 4: Simplify right side
    914,611.40x = 523,933,469,280.78
  5. Step 5: Solve for x
    x = 523,933,469,280.78/914,611.40
  6. Step 6: Final answer
    x = 572,848.17

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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.