Home / 808,664.80-1,212,219.60-628,650.40

Finding the Fourth Proportional to 808,664.80, 1,212,219.60 and 628,650.40

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Solution

The fourth proportional to 808,664.80, 1,212,219.60 and 628,650.40 is: 942,371.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,664.80 : 1,212,219.60 = 628,650.40 : x
  2. Step 2: Convert to fraction form
    808,664.80/1,212,219.60 = 628,650.40/x
  3. Step 3: Cross multiply
    808,664.80x = 1,212,219.60 × 628,650.40
  4. Step 4: Simplify right side
    808,664.80x = 762,062,336,427.84
  5. Step 5: Solve for x
    x = 762,062,336,427.84/808,664.80
  6. Step 6: Final answer
    x = 942,371.10

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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.