Home / 1,884,025.60-2,821,891.20-1,320,006.40

Finding the Fourth Proportional to 1,884,025.60, 2,821,891.20 and 1,320,006.40

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Solution

The fourth proportional to 1,884,025.60, 2,821,891.20 and 1,320,006.40 is: 1,977,103.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,884,025.60 : 2,821,891.20 = 1,320,006.40 : x
  2. Step 2: Convert to fraction form
    1,884,025.60/2,821,891.20 = 1,320,006.40/x
  3. Step 3: Cross multiply
    1,884,025.60x = 2,821,891.20 × 1,320,006.40
  4. Step 4: Simplify right side
    1,884,025.60x = 3,724,914,444,103.68
  5. Step 5: Solve for x
    x = 3,724,914,444,103.68/1,884,025.60
  6. Step 6: Final answer
    x = 1,977,103.94

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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.