Home / 1,405,815.90-2,107,234.89-458,932.38

Finding the Fourth Proportional to 1,405,815.90, 2,107,234.89 and 458,932.38

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Solution

The fourth proportional to 1,405,815.90, 2,107,234.89 and 458,932.38 is: 687,912.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,815.90 : 2,107,234.89 = 458,932.38 : x
  2. Step 2: Convert to fraction form
    1,405,815.90/2,107,234.89 = 458,932.38/x
  3. Step 3: Cross multiply
    1,405,815.90x = 2,107,234.89 × 458,932.38
  4. Step 4: Simplify right side
    1,405,815.90x = 967,078,323,286.74
  5. Step 5: Solve for x
    x = 967,078,323,286.74/1,405,815.90
  6. Step 6: Final answer
    x = 687,912.50

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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.