Home / 804,568.40-1,207,630.20-405,659.60

Finding the Fourth Proportional to 804,568.40, 1,207,630.20 and 405,659.60

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Solution

The fourth proportional to 804,568.40, 1,207,630.20 and 405,659.60 is: 608,881.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,568.40 : 1,207,630.20 = 405,659.60 : x
  2. Step 2: Convert to fraction form
    804,568.40/1,207,630.20 = 405,659.60/x
  3. Step 3: Cross multiply
    804,568.40x = 1,207,630.20 × 405,659.60
  4. Step 4: Simplify right side
    804,568.40x = 489,886,783,879.92
  5. Step 5: Solve for x
    x = 489,886,783,879.92/804,568.40
  6. Step 6: Final answer
    x = 608,881.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.