Home / 1,296,988.71-1,785,882.29-1,175,338.64

Finding the Fourth Proportional to 1,296,988.71, 1,785,882.29 and 1,175,338.64

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Solution

The fourth proportional to 1,296,988.71, 1,785,882.29 and 1,175,338.64 is: 1,618,376.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,296,988.71 : 1,785,882.29 = 1,175,338.64 : x
  2. Step 2: Convert to fraction form
    1,296,988.71/1,785,882.29 = 1,175,338.64/x
  3. Step 3: Cross multiply
    1,296,988.71x = 1,785,882.29 × 1,175,338.64
  4. Step 4: Simplify right side
    1,296,988.71x = 2,099,016,447,122.58
  5. Step 5: Solve for x
    x = 2,099,016,447,122.58/1,296,988.71
  6. Step 6: Final answer
    x = 1,618,376.81

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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.