Home / 1,368,958.52-1,889,158.88-787,969.35

Finding the Fourth Proportional to 1,368,958.52, 1,889,158.88 and 787,969.35

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Solution

The fourth proportional to 1,368,958.52, 1,889,158.88 and 787,969.35 is: 1,087,395.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,368,958.52 : 1,889,158.88 = 787,969.35 : x
  2. Step 2: Convert to fraction form
    1,368,958.52/1,889,158.88 = 787,969.35/x
  3. Step 3: Cross multiply
    1,368,958.52x = 1,889,158.88 × 787,969.35
  4. Step 4: Simplify right side
    1,368,958.52x = 1,488,599,296,690.25
  5. Step 5: Solve for x
    x = 1,488,599,296,690.25/1,368,958.52
  6. Step 6: Final answer
    x = 1,087,395.47

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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.