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Finding the Fourth Proportional to 449,283.76, 619,862.32 and 296,397.92

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Solution

The fourth proportional to 449,283.76, 619,862.32 and 296,397.92 is: 408,930.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,283.76 : 619,862.32 = 296,397.92 : x
  2. Step 2: Convert to fraction form
    449,283.76/619,862.32 = 296,397.92/x
  3. Step 3: Cross multiply
    449,283.76x = 619,862.32 × 296,397.92
  4. Step 4: Simplify right side
    449,283.76x = 183,725,902,334.37
  5. Step 5: Solve for x
    x = 183,725,902,334.37/449,283.76
  6. Step 6: Final answer
    x = 408,930.66

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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.