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Finding the Fourth Proportional to 491,589.01, 678,602.53 and 330,537.41

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Solution

The fourth proportional to 491,589.01, 678,602.53 and 330,537.41 is: 456,282.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,589.01 : 678,602.53 = 330,537.41 : x
  2. Step 2: Convert to fraction form
    491,589.01/678,602.53 = 330,537.41/x
  3. Step 3: Cross multiply
    491,589.01x = 678,602.53 × 330,537.41
  4. Step 4: Simplify right side
    491,589.01x = 224,303,522,685.65
  5. Step 5: Solve for x
    x = 224,303,522,685.65/491,589.01
  6. Step 6: Final answer
    x = 456,282.62

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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.