Home / 519,232.20-779,285.70-203,915.40

Finding the Fourth Proportional to 519,232.20, 779,285.70 and 203,915.40

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Solution

The fourth proportional to 519,232.20, 779,285.70 and 203,915.40 is: 306,044.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,232.20 : 779,285.70 = 203,915.40 : x
  2. Step 2: Convert to fraction form
    519,232.20/779,285.70 = 203,915.40/x
  3. Step 3: Cross multiply
    519,232.20x = 779,285.70 × 203,915.40
  4. Step 4: Simplify right side
    519,232.20x = 158,908,355,229.78
  5. Step 5: Solve for x
    x = 158,908,355,229.78/519,232.20
  6. Step 6: Final answer
    x = 306,044.88

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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.