Home / 1,558,919.86-2,151,490.92-1,296,812.14

Finding the Fourth Proportional to 1,558,919.86, 2,151,490.92 and 1,296,812.14

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Solution

The fourth proportional to 1,558,919.86, 2,151,490.92 and 1,296,812.14 is: 1,789,751.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,558,919.86 : 2,151,490.92 = 1,296,812.14 : x
  2. Step 2: Convert to fraction form
    1,558,919.86/2,151,490.92 = 1,296,812.14/x
  3. Step 3: Cross multiply
    1,558,919.86x = 2,151,490.92 × 1,296,812.14
  4. Step 4: Simplify right side
    1,558,919.86x = 2,790,079,544,155.77
  5. Step 5: Solve for x
    x = 2,790,079,544,155.77/1,558,919.86
  6. Step 6: Final answer
    x = 1,789,751.75

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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.