Home / 1,881,998.40-2,821,410.60-816,237.78

Finding the Fourth Proportional to 1,881,998.40, 2,821,410.60 and 816,237.78

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Solution

The fourth proportional to 1,881,998.40, 2,821,410.60 and 816,237.78 is: 1,223,668.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,881,998.40 : 2,821,410.60 = 816,237.78 : x
  2. Step 2: Convert to fraction form
    1,881,998.40/2,821,410.60 = 816,237.78/x
  3. Step 3: Cross multiply
    1,881,998.40x = 2,821,410.60 × 816,237.78
  4. Step 4: Simplify right side
    1,881,998.40x = 2,302,941,924,612.47
  5. Step 5: Solve for x
    x = 2,302,941,924,612.47/1,881,998.40
  6. Step 6: Final answer
    x = 1,223,668.38

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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.