Home / 1,427,578.78-1,970,061.54-783,004.26

Finding the Fourth Proportional to 1,427,578.78, 1,970,061.54 and 783,004.26

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Solution

The fourth proportional to 1,427,578.78, 1,970,061.54 and 783,004.26 is: 1,080,547.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,427,578.78 : 1,970,061.54 = 783,004.26 : x
  2. Step 2: Convert to fraction form
    1,427,578.78/1,970,061.54 = 783,004.26/x
  3. Step 3: Cross multiply
    1,427,578.78x = 1,970,061.54 × 783,004.26
  4. Step 4: Simplify right side
    1,427,578.78x = 1,542,566,578,282.16
  5. Step 5: Solve for x
    x = 1,542,566,578,282.16/1,427,578.78
  6. Step 6: Final answer
    x = 1,080,547.43

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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.