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Finding the Fourth Proportional to 449,037.51, 619,076.30 and 372,266.79

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Solution

The fourth proportional to 449,037.51, 619,076.30 and 372,266.79 is: 513,234.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,037.51 : 619,076.30 = 372,266.79 : x
  2. Step 2: Convert to fraction form
    449,037.51/619,076.30 = 372,266.79/x
  3. Step 3: Cross multiply
    449,037.51x = 619,076.30 × 372,266.79
  4. Step 4: Simplify right side
    449,037.51x = 230,461,545,104.74
  5. Step 5: Solve for x
    x = 230,461,545,104.74/449,037.51
  6. Step 6: Final answer
    x = 513,234.51

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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.