Home / 3,738,290.40-5,607,435.60-1,214,200.80

Finding the Fourth Proportional to 3,738,290.40, 5,607,435.60 and 1,214,200.80

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Solution

The fourth proportional to 3,738,290.40, 5,607,435.60 and 1,214,200.80 is: 1,821,301.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,738,290.40 : 5,607,435.60 = 1,214,200.80 : x
  2. Step 2: Convert to fraction form
    3,738,290.40/5,607,435.60 = 1,214,200.80/x
  3. Step 3: Cross multiply
    3,738,290.40x = 5,607,435.60 × 1,214,200.80
  4. Step 4: Simplify right side
    3,738,290.40x = 6,808,552,791,468.48
  5. Step 5: Solve for x
    x = 6,808,552,791,468.48/3,738,290.40
  6. Step 6: Final answer
    x = 1,821,301.20

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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.