Home / 519,226.20-779,276.70-203,909.40

Finding the Fourth Proportional to 519,226.20, 779,276.70 and 203,909.40

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Solution

The fourth proportional to 519,226.20, 779,276.70 and 203,909.40 is: 306,035.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,226.20 : 779,276.70 = 203,909.40 : x
  2. Step 2: Convert to fraction form
    519,226.20/779,276.70 = 203,909.40/x
  3. Step 3: Cross multiply
    519,226.20x = 779,276.70 × 203,909.40
  4. Step 4: Simplify right side
    519,226.20x = 158,901,844,330.98
  5. Step 5: Solve for x
    x = 158,901,844,330.98/519,226.20
  6. Step 6: Final answer
    x = 306,035.87

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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.