Home / 1,286,431.36-1,775,384.22-713,656

Finding the Fourth Proportional to 1,286,431.36, 1,775,384.22 and 713,656

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Solution

The fourth proportional to 1,286,431.36, 1,775,384.22 and 713,656 is: 984,905.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,431.36 : 1,775,384.22 = 713,656 : x
  2. Step 2: Convert to fraction form
    1,286,431.36/1,775,384.22 = 713,656/x
  3. Step 3: Cross multiply
    1,286,431.36x = 1,775,384.22 × 713,656
  4. Step 4: Simplify right side
    1,286,431.36x = 1,267,013,600,908.32
  5. Step 5: Solve for x
    x = 1,267,013,600,908.32/1,286,431.36
  6. Step 6: Final answer
    x = 984,905.72

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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.