Home / 812,988.83-1,219,224.89-759,918.53

Finding the Fourth Proportional to 812,988.83, 1,219,224.89 and 759,918.53

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Solution

The fourth proportional to 812,988.83, 1,219,224.89 and 759,918.53 is: 1,139,636.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,988.83 : 1,219,224.89 = 759,918.53 : x
  2. Step 2: Convert to fraction form
    812,988.83/1,219,224.89 = 759,918.53/x
  3. Step 3: Cross multiply
    812,988.83x = 1,219,224.89 × 759,918.53
  4. Step 4: Simplify right side
    812,988.83x = 926,511,591,096.07
  5. Step 5: Solve for x
    x = 926,511,591,096.07/812,988.83
  6. Step 6: Final answer
    x = 1,139,636.32

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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.