Home / 492,310.24-679,442.46-285,624.16

Finding the Fourth Proportional to 492,310.24, 679,442.46 and 285,624.16

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Solution

The fourth proportional to 492,310.24, 679,442.46 and 285,624.16 is: 394,192.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,310.24 : 679,442.46 = 285,624.16 : x
  2. Step 2: Convert to fraction form
    492,310.24/679,442.46 = 285,624.16/x
  3. Step 3: Cross multiply
    492,310.24x = 679,442.46 × 285,624.16
  4. Step 4: Simplify right side
    492,310.24x = 194,065,181,481.18
  5. Step 5: Solve for x
    x = 194,065,181,481.18/492,310.24
  6. Step 6: Final answer
    x = 394,192.86

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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.