Home / 1,368,916.86-1,889,357.98-879,498.19

Finding the Fourth Proportional to 1,368,916.86, 1,889,357.98 and 879,498.19

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Solution

The fourth proportional to 1,368,916.86, 1,889,357.98 and 879,498.19 is: 1,213,869.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,368,916.86 : 1,889,357.98 = 879,498.19 : x
  2. Step 2: Convert to fraction form
    1,368,916.86/1,889,357.98 = 879,498.19/x
  3. Step 3: Cross multiply
    1,368,916.86x = 1,889,357.98 × 879,498.19
  4. Step 4: Simplify right side
    1,368,916.86x = 1,661,686,923,672.06
  5. Step 5: Solve for x
    x = 1,661,686,923,672.06/1,368,916.86
  6. Step 6: Final answer
    x = 1,213,869.86

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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.