Home / 1,368,918.81-1,889,360.66-879,500.14

Finding the Fourth Proportional to 1,368,918.81, 1,889,360.66 and 879,500.14

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Solution

The fourth proportional to 1,368,918.81, 1,889,360.66 and 879,500.14 is: 1,213,872.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,368,918.81 : 1,889,360.66 = 879,500.14 : x
  2. Step 2: Convert to fraction form
    1,368,918.81/1,889,360.66 = 879,500.14/x
  3. Step 3: Cross multiply
    1,368,918.81x = 1,889,360.66 × 879,500.14
  4. Step 4: Simplify right side
    1,368,918.81x = 1,661,692,962,455.84
  5. Step 5: Solve for x
    x = 1,661,692,962,455.84/1,368,918.81
  6. Step 6: Final answer
    x = 1,213,872.55

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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.