Home / 809,988.60-1,214,982.90-455,014.20

Finding the Fourth Proportional to 809,988.60, 1,214,982.90 and 455,014.20

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Solution

The fourth proportional to 809,988.60, 1,214,982.90 and 455,014.20 is: 682,521.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,988.60 : 1,214,982.90 = 455,014.20 : x
  2. Step 2: Convert to fraction form
    809,988.60/1,214,982.90 = 455,014.20/x
  3. Step 3: Cross multiply
    809,988.60x = 1,214,982.90 × 455,014.20
  4. Step 4: Simplify right side
    809,988.60x = 552,834,472,257.18
  5. Step 5: Solve for x
    x = 552,834,472,257.18/809,988.60
  6. Step 6: Final answer
    x = 682,521.30

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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.