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Finding the Fourth Proportional to 449,397.19, 619,757.40 and 351,293.39

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Solution

The fourth proportional to 449,397.19, 619,757.40 and 351,293.39 is: 484,463.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,397.19 : 619,757.40 = 351,293.39 : x
  2. Step 2: Convert to fraction form
    449,397.19/619,757.40 = 351,293.39/x
  3. Step 3: Cross multiply
    449,397.19x = 619,757.40 × 351,293.39
  4. Step 4: Simplify right side
    449,397.19x = 217,716,677,248.89
  5. Step 5: Solve for x
    x = 217,716,677,248.89/449,397.19
  6. Step 6: Final answer
    x = 484,463.81

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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.