Home / 1,615,618.86-2,229,542.86-890,466.97

Finding the Fourth Proportional to 1,615,618.86, 2,229,542.86 and 890,466.97

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Solution

The fourth proportional to 1,615,618.86, 2,229,542.86 and 890,466.97 is: 1,228,838.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,615,618.86 : 2,229,542.86 = 890,466.97 : x
  2. Step 2: Convert to fraction form
    1,615,618.86/2,229,542.86 = 890,466.97/x
  3. Step 3: Cross multiply
    1,615,618.86x = 2,229,542.86 × 890,466.97
  4. Step 4: Simplify right side
    1,615,618.86x = 1,985,334,261,655.45
  5. Step 5: Solve for x
    x = 1,985,334,261,655.45/1,615,618.86
  6. Step 6: Final answer
    x = 1,228,838.26

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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.