Home / 1,368,917.87-1,889,359.37-879,499.19

Finding the Fourth Proportional to 1,368,917.87, 1,889,359.37 and 879,499.19

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Solution

The fourth proportional to 1,368,917.87, 1,889,359.37 and 879,499.19 is: 1,213,871.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,368,917.87 : 1,889,359.37 = 879,499.19 : x
  2. Step 2: Convert to fraction form
    1,368,917.87/1,889,359.37 = 879,499.19/x
  3. Step 3: Cross multiply
    1,368,917.87x = 1,889,359.37 × 879,499.19
  4. Step 4: Simplify right side
    1,368,917.87x = 1,661,690,021,689.62
  5. Step 5: Solve for x
    x = 1,661,690,021,689.62/1,368,917.87
  6. Step 6: Final answer
    x = 1,213,871.24

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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.