Home / 1,205,346.78-1,663,268.61-715,231.83

Finding the Fourth Proportional to 1,205,346.78, 1,663,268.61 and 715,231.83

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Solution

The fourth proportional to 1,205,346.78, 1,663,268.61 and 715,231.83 is: 986,954.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,205,346.78 : 1,663,268.61 = 715,231.83 : x
  2. Step 2: Convert to fraction form
    1,205,346.78/1,663,268.61 = 715,231.83/x
  3. Step 3: Cross multiply
    1,205,346.78x = 1,663,268.61 × 715,231.83
  4. Step 4: Simplify right side
    1,205,346.78x = 1,189,622,654,393.98
  5. Step 5: Solve for x
    x = 1,189,622,654,393.98/1,205,346.78
  6. Step 6: Final answer
    x = 986,954.69

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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.