Home / 1,222,111.20-1,835,135.10-922,929.60

Finding the Fourth Proportional to 1,222,111.20, 1,835,135.10 and 922,929.60

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Solution

The fourth proportional to 1,222,111.20, 1,835,135.10 and 922,929.60 is: 1,385,880.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,222,111.20 : 1,835,135.10 = 922,929.60 : x
  2. Step 2: Convert to fraction form
    1,222,111.20/1,835,135.10 = 922,929.60/x
  3. Step 3: Cross multiply
    1,222,111.20x = 1,835,135.10 × 922,929.60
  4. Step 4: Simplify right side
    1,222,111.20x = 1,693,700,503,788.96
  5. Step 5: Solve for x
    x = 1,693,700,503,788.96/1,222,111.20
  6. Step 6: Final answer
    x = 1,385,880.85

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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.