Home / 2,119,419.86-3,178,684.62-699,143.18

Finding the Fourth Proportional to 2,119,419.86, 3,178,684.62 and 699,143.18

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Solution

The fourth proportional to 2,119,419.86, 3,178,684.62 and 699,143.18 is: 1,048,567.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,119,419.86 : 3,178,684.62 = 699,143.18 : x
  2. Step 2: Convert to fraction form
    2,119,419.86/3,178,684.62 = 699,143.18/x
  3. Step 3: Cross multiply
    2,119,419.86x = 3,178,684.62 × 699,143.18
  4. Step 4: Simplify right side
    2,119,419.86x = 2,222,355,657,550.47
  5. Step 5: Solve for x
    x = 2,222,355,657,550.47/2,119,419.86
  6. Step 6: Final answer
    x = 1,048,567.91

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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.