Home / 2,140,742-2,954,313.60-1,173,909.54

Finding the Fourth Proportional to 2,140,742, 2,954,313.60 and 1,173,909.54

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Solution

The fourth proportional to 2,140,742, 2,954,313.60 and 1,173,909.54 is: 1,620,044.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,140,742 : 2,954,313.60 = 1,173,909.54 : x
  2. Step 2: Convert to fraction form
    2,140,742/2,954,313.60 = 1,173,909.54/x
  3. Step 3: Cross multiply
    2,140,742x = 2,954,313.60 × 1,173,909.54
  4. Step 4: Simplify right side
    2,140,742x = 3,468,096,919,191.74
  5. Step 5: Solve for x
    x = 3,468,096,919,191.74/2,140,742
  6. Step 6: Final answer
    x = 1,620,044.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.