Home / 1,315,811.44-1,815,825.24-712,199.44

Finding the Fourth Proportional to 1,315,811.44, 1,815,825.24 and 712,199.44

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Solution

The fourth proportional to 1,315,811.44, 1,815,825.24 and 712,199.44 is: 982,838.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,811.44 : 1,815,825.24 = 712,199.44 : x
  2. Step 2: Convert to fraction form
    1,315,811.44/1,815,825.24 = 712,199.44/x
  3. Step 3: Cross multiply
    1,315,811.44x = 1,815,825.24 × 712,199.44
  4. Step 4: Simplify right side
    1,315,811.44x = 1,293,229,719,065.87
  5. Step 5: Solve for x
    x = 1,293,229,719,065.87/1,315,811.44
  6. Step 6: Final answer
    x = 982,838.18

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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.