Home / 813,408.30-1,220,112.45-414,827.55

Finding the Fourth Proportional to 813,408.30, 1,220,112.45 and 414,827.55

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Solution

The fourth proportional to 813,408.30, 1,220,112.45 and 414,827.55 is: 622,241.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,408.30 : 1,220,112.45 = 414,827.55 : x
  2. Step 2: Convert to fraction form
    813,408.30/1,220,112.45 = 414,827.55/x
  3. Step 3: Cross multiply
    813,408.30x = 1,220,112.45 × 414,827.55
  4. Step 4: Simplify right side
    813,408.30x = 506,136,258,358.00
  5. Step 5: Solve for x
    x = 506,136,258,358.00/813,408.30
  6. Step 6: Final answer
    x = 622,241.33

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1.5x scale

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.