Home / 1,380,716.60-2,068,709.70-1,097,281.40

Finding the Fourth Proportional to 1,380,716.60, 2,068,709.70 and 1,097,281.40

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Solution

The fourth proportional to 1,380,716.60, 2,068,709.70 and 1,097,281.40 is: 1,644,042.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,380,716.60 : 2,068,709.70 = 1,097,281.40 : x
  2. Step 2: Convert to fraction form
    1,380,716.60/2,068,709.70 = 1,097,281.40/x
  3. Step 3: Cross multiply
    1,380,716.60x = 2,068,709.70 × 1,097,281.40
  4. Step 4: Simplify right side
    1,380,716.60x = 2,269,956,675,809.58
  5. Step 5: Solve for x
    x = 2,269,956,675,809.58/1,380,716.60
  6. Step 6: Final answer
    x = 1,644,042.43

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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.