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Finding the Fourth Proportional to 880,508.67, 1,321,354.98 and 311,887.86

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Solution

The fourth proportional to 880,508.67, 1,321,354.98 and 311,887.86 is: 468,041.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,508.67 : 1,321,354.98 = 311,887.86 : x
  2. Step 2: Convert to fraction form
    880,508.67/1,321,354.98 = 311,887.86/x
  3. Step 3: Cross multiply
    880,508.67x = 1,321,354.98 × 311,887.86
  4. Step 4: Simplify right side
    880,508.67x = 412,114,577,012.54
  5. Step 5: Solve for x
    x = 412,114,577,012.54/880,508.67
  6. Step 6: Final answer
    x = 468,041.48

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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.