Home / 489,869.10-676,093.14-298,993.41

Finding the Fourth Proportional to 489,869.10, 676,093.14 and 298,993.41

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Solution

The fourth proportional to 489,869.10, 676,093.14 and 298,993.41 is: 412,655.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,869.10 : 676,093.14 = 298,993.41 : x
  2. Step 2: Convert to fraction form
    489,869.10/676,093.14 = 298,993.41/x
  3. Step 3: Cross multiply
    489,869.10x = 676,093.14 × 298,993.41
  4. Step 4: Simplify right side
    489,869.10x = 202,147,393,406.21
  5. Step 5: Solve for x
    x = 202,147,393,406.21/489,869.10
  6. Step 6: Final answer
    x = 412,655.94

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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.