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Finding the Fourth Proportional to 449,471.84, 620,247.42 and 245,519.81

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Solution

The fourth proportional to 449,471.84, 620,247.42 and 245,519.81 is: 338,804.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,471.84 : 620,247.42 = 245,519.81 : x
  2. Step 2: Convert to fraction form
    449,471.84/620,247.42 = 245,519.81/x
  3. Step 3: Cross multiply
    449,471.84x = 620,247.42 × 245,519.81
  4. Step 4: Simplify right side
    449,471.84x = 152,283,030,262.01
  5. Step 5: Solve for x
    x = 152,283,030,262.01/449,471.84
  6. Step 6: Final answer
    x = 338,804.38

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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.