Home / 1,315,416.14-1,815,223.87-825,647.72

Finding the Fourth Proportional to 1,315,416.14, 1,815,223.87 and 825,647.72

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Solution

The fourth proportional to 1,315,416.14, 1,815,223.87 and 825,647.72 is: 1,139,362.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,416.14 : 1,815,223.87 = 825,647.72 : x
  2. Step 2: Convert to fraction form
    1,315,416.14/1,815,223.87 = 825,647.72/x
  3. Step 3: Cross multiply
    1,315,416.14x = 1,815,223.87 × 825,647.72
  4. Step 4: Simplify right side
    1,315,416.14x = 1,498,735,441,511.02
  5. Step 5: Solve for x
    x = 1,498,735,441,511.02/1,315,416.14
  6. Step 6: Final answer
    x = 1,139,362.21

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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.