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Finding the Fourth Proportional to 3,784,237.60, 5,677,911.60 and 1,389,229.60

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Solution

The fourth proportional to 3,784,237.60, 5,677,911.60 and 1,389,229.60 is: 2,084,415.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,784,237.60 : 5,677,911.60 = 1,389,229.60 : x
  2. Step 2: Convert to fraction form
    3,784,237.60/5,677,911.60 = 1,389,229.60/x
  3. Step 3: Cross multiply
    3,784,237.60x = 5,677,911.60 × 1,389,229.60
  4. Step 4: Simplify right side
    3,784,237.60x = 7,887,922,860,903.36
  5. Step 5: Solve for x
    x = 7,887,922,860,903.36/3,784,237.60
  6. Step 6: Final answer
    x = 2,084,415.33

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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.