Home / 1,615,540.35-2,229,354.72-890,385.84

Finding the Fourth Proportional to 1,615,540.35, 2,229,354.72 and 890,385.84

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Solution

The fourth proportional to 1,615,540.35, 2,229,354.72 and 890,385.84 is: 1,228,682.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,615,540.35 : 2,229,354.72 = 890,385.84 : x
  2. Step 2: Convert to fraction form
    1,615,540.35/2,229,354.72 = 890,385.84/x
  3. Step 3: Cross multiply
    1,615,540.35x = 2,229,354.72 × 890,385.84
  4. Step 4: Simplify right side
    1,615,540.35x = 1,984,985,875,025.16
  5. Step 5: Solve for x
    x = 1,984,985,875,025.16/1,615,540.35
  6. Step 6: Final answer
    x = 1,228,682.33

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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.