Home / 1,215,740.67-1,677,727.38-664,467.54

Finding the Fourth Proportional to 1,215,740.67, 1,677,727.38 and 664,467.54

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Solution

The fourth proportional to 1,215,740.67, 1,677,727.38 and 664,467.54 is: 916,968.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,740.67 : 1,677,727.38 = 664,467.54 : x
  2. Step 2: Convert to fraction form
    1,215,740.67/1,677,727.38 = 664,467.54/x
  3. Step 3: Cross multiply
    1,215,740.67x = 1,677,727.38 × 664,467.54
  4. Step 4: Simplify right side
    1,215,740.67x = 1,114,795,384,979.25
  5. Step 5: Solve for x
    x = 1,114,795,384,979.25/1,215,740.67
  6. Step 6: Final answer
    x = 916,968.08

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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.