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Finding the Fourth Proportional to 536,620.54, 803,879.07 and 311,508.94

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Solution

The fourth proportional to 536,620.54, 803,879.07 and 311,508.94 is: 466,652.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,620.54 : 803,879.07 = 311,508.94 : x
  2. Step 2: Convert to fraction form
    536,620.54/803,879.07 = 311,508.94/x
  3. Step 3: Cross multiply
    536,620.54x = 803,879.07 × 311,508.94
  4. Step 4: Simplify right side
    536,620.54x = 250,415,516,983.89
  5. Step 5: Solve for x
    x = 250,415,516,983.89/536,620.54
  6. Step 6: Final answer
    x = 466,652.87

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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.