Home / 1,315,809.44-1,815,822.48-712,197.44

Finding the Fourth Proportional to 1,315,809.44, 1,815,822.48 and 712,197.44

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Solution

The fourth proportional to 1,315,809.44, 1,815,822.48 and 712,197.44 is: 982,835.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,809.44 : 1,815,822.48 = 712,197.44 : x
  2. Step 2: Convert to fraction form
    1,315,809.44/1,815,822.48 = 712,197.44/x
  3. Step 3: Cross multiply
    1,315,809.44x = 1,815,822.48 × 712,197.44
  4. Step 4: Simplify right side
    1,315,809.44x = 1,293,224,121,750.45
  5. Step 5: Solve for x
    x = 1,293,224,121,750.45/1,315,809.44
  6. Step 6: Final answer
    x = 982,835.42

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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.