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Finding the Fourth Proportional to 449,816.84, 620,763.80 and 245,881.52

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Solution

The fourth proportional to 449,816.84, 620,763.80 and 245,881.52 is: 339,325.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,816.84 : 620,763.80 = 245,881.52 : x
  2. Step 2: Convert to fraction form
    449,816.84/620,763.80 = 245,881.52/x
  3. Step 3: Cross multiply
    449,816.84x = 620,763.80 × 245,881.52
  4. Step 4: Simplify right side
    449,816.84x = 152,634,346,704.98
  5. Step 5: Solve for x
    x = 152,634,346,704.98/449,816.84
  6. Step 6: Final answer
    x = 339,325.55

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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.