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Finding the Fourth Proportional to 449,040.76, 619,080.78 and 372,270.04

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Solution

The fourth proportional to 449,040.76, 619,080.78 and 372,270.04 is: 513,238.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,040.76 : 619,080.78 = 372,270.04 : x
  2. Step 2: Convert to fraction form
    449,040.76/619,080.78 = 372,270.04/x
  3. Step 3: Cross multiply
    449,040.76x = 619,080.78 × 372,270.04
  4. Step 4: Simplify right side
    449,040.76x = 230,465,226,733.83
  5. Step 5: Solve for x
    x = 230,465,226,733.83/449,040.76
  6. Step 6: Final answer
    x = 513,238.99

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1.5x scale

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.