Home / 1,605,455.60-2,215,628.12-890,063.60

Finding the Fourth Proportional to 1,605,455.60, 2,215,628.12 and 890,063.60

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Solution

The fourth proportional to 1,605,455.60, 2,215,628.12 and 890,063.60 is: 1,228,342.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,605,455.60 : 2,215,628.12 = 890,063.60 : x
  2. Step 2: Convert to fraction form
    1,605,455.60/2,215,628.12 = 890,063.60/x
  3. Step 3: Cross multiply
    1,605,455.60x = 2,215,628.12 × 890,063.60
  4. Step 4: Simplify right side
    1,605,455.60x = 1,972,049,940,748.43
  5. Step 5: Solve for x
    x = 1,972,049,940,748.43/1,605,455.60
  6. Step 6: Final answer
    x = 1,228,342.87

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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.