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Finding the Fourth Proportional to 449,018.94, 619,644.87 and 247,813.50

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Solution

The fourth proportional to 449,018.94, 619,644.87 and 247,813.50 is: 341,981.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,018.94 : 619,644.87 = 247,813.50 : x
  2. Step 2: Convert to fraction form
    449,018.94/619,644.87 = 247,813.50/x
  3. Step 3: Cross multiply
    449,018.94x = 619,644.87 × 247,813.50
  4. Step 4: Simplify right side
    449,018.94x = 153,556,363,991.75
  5. Step 5: Solve for x
    x = 153,556,363,991.75/449,018.94
  6. Step 6: Final answer
    x = 341,981.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.