Home / 1,315,525.38-1,815,418.35-711,913.38

Finding the Fourth Proportional to 1,315,525.38, 1,815,418.35 and 711,913.38

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Solution

The fourth proportional to 1,315,525.38, 1,815,418.35 and 711,913.38 is: 982,436.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,525.38 : 1,815,418.35 = 711,913.38 : x
  2. Step 2: Convert to fraction form
    1,315,525.38/1,815,418.35 = 711,913.38/x
  3. Step 3: Cross multiply
    1,315,525.38x = 1,815,418.35 × 711,913.38
  4. Step 4: Simplify right side
    1,315,525.38x = 1,292,420,613,662.52
  5. Step 5: Solve for x
    x = 1,292,420,613,662.52/1,315,525.38
  6. Step 6: Final answer
    x = 982,436.85

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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.