Home / 449,019.05-619,630.86-267,637.47

Finding the Fourth Proportional to 449,019.05, 619,630.86 and 267,637.47

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Solution

The fourth proportional to 449,019.05, 619,630.86 and 267,637.47 is: 369,330.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,019.05 : 619,630.86 = 267,637.47 : x
  2. Step 2: Convert to fraction form
    449,019.05/619,630.86 = 267,637.47/x
  3. Step 3: Cross multiply
    449,019.05x = 619,630.86 × 267,637.47
  4. Step 4: Simplify right side
    449,019.05x = 165,836,434,384.35
  5. Step 5: Solve for x
    x = 165,836,434,384.35/449,019.05
  6. Step 6: Final answer
    x = 369,330.51

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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.