Home / 1,427,918-1,970,552.78-783,371.12

Finding the Fourth Proportional to 1,427,918, 1,970,552.78 and 783,371.12

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Solution

The fourth proportional to 1,427,918, 1,970,552.78 and 783,371.12 is: 1,081,066.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,427,918 : 1,970,552.78 = 783,371.12 : x
  2. Step 2: Convert to fraction form
    1,427,918/1,970,552.78 = 783,371.12/x
  3. Step 3: Cross multiply
    1,427,918x = 1,970,552.78 × 783,371.12
  4. Step 4: Simplify right side
    1,427,918x = 1,543,674,138,287.71
  5. Step 5: Solve for x
    x = 1,543,674,138,287.71/1,427,918
  6. Step 6: Final answer
    x = 1,081,066.38

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.