Home / 1,368,919.35-1,889,361.45-879,500.70

Finding the Fourth Proportional to 1,368,919.35, 1,889,361.45 and 879,500.70

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Solution

The fourth proportional to 1,368,919.35, 1,889,361.45 and 879,500.70 is: 1,213,873.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,368,919.35 : 1,889,361.45 = 879,500.70 : x
  2. Step 2: Convert to fraction form
    1,368,919.35/1,889,361.45 = 879,500.70/x
  3. Step 3: Cross multiply
    1,368,919.35x = 1,889,361.45 × 879,500.70
  4. Step 4: Simplify right side
    1,368,919.35x = 1,661,694,717,828.02
  5. Step 5: Solve for x
    x = 1,661,694,717,828.02/1,368,919.35
  6. Step 6: Final answer
    x = 1,213,873.35

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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.