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Finding the Fourth Proportional to 449,440.86, 620,224.27 and 245,491.73

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Solution

The fourth proportional to 449,440.86, 620,224.27 and 245,491.73 is: 338,776.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,440.86 : 620,224.27 = 245,491.73 : x
  2. Step 2: Convert to fraction form
    449,440.86/620,224.27 = 245,491.73/x
  3. Step 3: Cross multiply
    449,440.86x = 620,224.27 × 245,491.73
  4. Step 4: Simplify right side
    449,440.86x = 152,259,929,030.29
  5. Step 5: Solve for x
    x = 152,259,929,030.29/449,440.86
  6. Step 6: Final answer
    x = 338,776.34

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1.5x scale

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.