Home / 831,738.60-1,247,607.90-808,410.60

Finding the Fourth Proportional to 831,738.60, 1,247,607.90 and 808,410.60

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Solution

The fourth proportional to 831,738.60, 1,247,607.90 and 808,410.60 is: 1,212,615.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,738.60 : 1,247,607.90 = 808,410.60 : x
  2. Step 2: Convert to fraction form
    831,738.60/1,247,607.90 = 808,410.60/x
  3. Step 3: Cross multiply
    831,738.60x = 1,247,607.90 × 808,410.60
  4. Step 4: Simplify right side
    831,738.60x = 1,008,579,451,003.74
  5. Step 5: Solve for x
    x = 1,008,579,451,003.74/831,738.60
  6. Step 6: Final answer
    x = 1,212,615.90

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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.