Home / 808,664.40-1,212,996.60-666,946.80

Finding the Fourth Proportional to 808,664.40, 1,212,996.60 and 666,946.80

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Solution

The fourth proportional to 808,664.40, 1,212,996.60 and 666,946.80 is: 1,000,420.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,664.40 : 1,212,996.60 = 666,946.80 : x
  2. Step 2: Convert to fraction form
    808,664.40/1,212,996.60 = 666,946.80/x
  3. Step 3: Cross multiply
    808,664.40x = 1,212,996.60 × 666,946.80
  4. Step 4: Simplify right side
    808,664.40x = 809,004,200,780.88
  5. Step 5: Solve for x
    x = 809,004,200,780.88/808,664.40
  6. Step 6: Final answer
    x = 1,000,420.20

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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.