Home / 807,918.70-1,210,128.45-702,942.70

Finding the Fourth Proportional to 807,918.70, 1,210,128.45 and 702,942.70

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Solution

The fourth proportional to 807,918.70, 1,210,128.45 and 702,942.70 is: 1,052,891.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,918.70 : 1,210,128.45 = 702,942.70 : x
  2. Step 2: Convert to fraction form
    807,918.70/1,210,128.45 = 702,942.70/x
  3. Step 3: Cross multiply
    807,918.70x = 1,210,128.45 × 702,942.70
  4. Step 4: Simplify right side
    807,918.70x = 850,650,959,989.82
  5. Step 5: Solve for x
    x = 850,650,959,989.82/807,918.70
  6. Step 6: Final answer
    x = 1,052,891.78

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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.