Home / 813,099.39-1,220,766.21-414,008.34

Finding the Fourth Proportional to 813,099.39, 1,220,766.21 and 414,008.34

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Solution

The fourth proportional to 813,099.39, 1,220,766.21 and 414,008.34 is: 621,581.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,099.39 : 1,220,766.21 = 414,008.34 : x
  2. Step 2: Convert to fraction form
    813,099.39/1,220,766.21 = 414,008.34/x
  3. Step 3: Cross multiply
    813,099.39x = 1,220,766.21 × 414,008.34
  4. Step 4: Simplify right side
    813,099.39x = 505,407,392,130.19
  5. Step 5: Solve for x
    x = 505,407,392,130.19/813,099.39
  6. Step 6: Final answer
    x = 621,581.32

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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.