Home / 939,858.39-1,297,006.97-510,138.54

Finding the Fourth Proportional to 939,858.39, 1,297,006.97 and 510,138.54

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Solution

The fourth proportional to 939,858.39, 1,297,006.97 and 510,138.54 is: 703,992.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,858.39 : 1,297,006.97 = 510,138.54 : x
  2. Step 2: Convert to fraction form
    939,858.39/1,297,006.97 = 510,138.54/x
  3. Step 3: Cross multiply
    939,858.39x = 1,297,006.97 × 510,138.54
  4. Step 4: Simplify right side
    939,858.39x = 661,653,239,494.93
  5. Step 5: Solve for x
    x = 661,653,239,494.93/939,858.39
  6. Step 6: Final answer
    x = 703,992.48

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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.