Home / 1,615,489.60-2,229,365.28-890,338

Finding the Fourth Proportional to 1,615,489.60, 2,229,365.28 and 890,338

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Solution

The fourth proportional to 1,615,489.60, 2,229,365.28 and 890,338 is: 1,228,660.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,615,489.60 : 2,229,365.28 = 890,338 : x
  2. Step 2: Convert to fraction form
    1,615,489.60/2,229,365.28 = 890,338/x
  3. Step 3: Cross multiply
    1,615,489.60x = 2,229,365.28 × 890,338
  4. Step 4: Simplify right side
    1,615,489.60x = 1,984,888,624,664.64
  5. Step 5: Solve for x
    x = 1,984,888,624,664.64/1,615,489.60
  6. Step 6: Final answer
    x = 1,228,660.73

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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.