Home / 392,926.21-589,393.43-314,538.73

Finding the Fourth Proportional to 392,926.21, 589,393.43 and 314,538.73

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Solution

The fourth proportional to 392,926.21, 589,393.43 and 314,538.73 is: 471,811.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,926.21 : 589,393.43 = 314,538.73 : x
  2. Step 2: Convert to fraction form
    392,926.21/589,393.43 = 314,538.73/x
  3. Step 3: Cross multiply
    392,926.21x = 589,393.43 × 314,538.73
  4. Step 4: Simplify right side
    392,926.21x = 185,387,059,075.89
  5. Step 5: Solve for x
    x = 185,387,059,075.89/392,926.21
  6. Step 6: Final answer
    x = 471,811.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.