Home / 1,512,258.74-2,086,819.74-900,456.43

Finding the Fourth Proportional to 1,512,258.74, 2,086,819.74 and 900,456.43

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Solution

The fourth proportional to 1,512,258.74, 2,086,819.74 and 900,456.43 is: 1,242,571.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,512,258.74 : 2,086,819.74 = 900,456.43 : x
  2. Step 2: Convert to fraction form
    1,512,258.74/2,086,819.74 = 900,456.43/x
  3. Step 3: Cross multiply
    1,512,258.74x = 2,086,819.74 × 900,456.43
  4. Step 4: Simplify right side
    1,512,258.74x = 1,879,090,238,197.55
  5. Step 5: Solve for x
    x = 1,879,090,238,197.55/1,512,258.74
  6. Step 6: Final answer
    x = 1,242,571.91

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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.