Home / 1,220,830.80-1,831,246.20-800,350.80

Finding the Fourth Proportional to 1,220,830.80, 1,831,246.20 and 800,350.80

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Solution

The fourth proportional to 1,220,830.80, 1,831,246.20 and 800,350.80 is: 1,200,526.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,220,830.80 : 1,831,246.20 = 800,350.80 : x
  2. Step 2: Convert to fraction form
    1,220,830.80/1,831,246.20 = 800,350.80/x
  3. Step 3: Cross multiply
    1,220,830.80x = 1,831,246.20 × 800,350.80
  4. Step 4: Simplify right side
    1,220,830.80x = 1,465,639,361,166.96
  5. Step 5: Solve for x
    x = 1,465,639,361,166.96/1,220,830.80
  6. Step 6: Final answer
    x = 1,200,526.20

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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.