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Finding the Fourth Proportional to 449,479.18, 620,283.41 and 245,532.93

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Solution

The fourth proportional to 449,479.18, 620,283.41 and 245,532.93 is: 338,836.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,479.18 : 620,283.41 = 245,532.93 : x
  2. Step 2: Convert to fraction form
    449,479.18/620,283.41 = 245,532.93/x
  3. Step 3: Cross multiply
    449,479.18x = 620,283.41 × 245,532.93
  4. Step 4: Simplify right side
    449,479.18x = 152,300,003,087.69
  5. Step 5: Solve for x
    x = 152,300,003,087.69/449,479.18
  6. Step 6: Final answer
    x = 338,836.61

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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.