Home / 1,821,021.30-2,731,531.95-1,112,433.30

Finding the Fourth Proportional to 1,821,021.30, 2,731,531.95 and 1,112,433.30

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Solution

The fourth proportional to 1,821,021.30, 2,731,531.95 and 1,112,433.30 is: 1,668,649.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,821,021.30 : 2,731,531.95 = 1,112,433.30 : x
  2. Step 2: Convert to fraction form
    1,821,021.30/2,731,531.95 = 1,112,433.30/x
  3. Step 3: Cross multiply
    1,821,021.30x = 2,731,531.95 × 1,112,433.30
  4. Step 4: Simplify right side
    1,821,021.30x = 3,038,647,101,193.94
  5. Step 5: Solve for x
    x = 3,038,647,101,193.94/1,821,021.30
  6. Step 6: Final answer
    x = 1,668,649.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.