Home / 1,687,398.89-2,530,576.79-489,409.25

Finding the Fourth Proportional to 1,687,398.89, 2,530,576.79 and 489,409.25

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Solution

The fourth proportional to 1,687,398.89, 2,530,576.79 and 489,409.25 is: 733,962.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,687,398.89 : 2,530,576.79 = 489,409.25 : x
  2. Step 2: Convert to fraction form
    1,687,398.89/2,530,576.79 = 489,409.25/x
  3. Step 3: Cross multiply
    1,687,398.89x = 2,530,576.79 × 489,409.25
  4. Step 4: Simplify right side
    1,687,398.89x = 1,238,487,686,414.26
  5. Step 5: Solve for x
    x = 1,238,487,686,414.26/1,687,398.89
  6. Step 6: Final answer
    x = 733,962.61

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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.