Home / 1,428,297.15-1,970,984.12-783,701.31

Finding the Fourth Proportional to 1,428,297.15, 1,970,984.12 and 783,701.31

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Solution

The fourth proportional to 1,428,297.15, 1,970,984.12 and 783,701.31 is: 1,081,471.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,428,297.15 : 1,970,984.12 = 783,701.31 : x
  2. Step 2: Convert to fraction form
    1,428,297.15/1,970,984.12 = 783,701.31/x
  3. Step 3: Cross multiply
    1,428,297.15x = 1,970,984.12 × 783,701.31
  4. Step 4: Simplify right side
    1,428,297.15x = 1,544,662,832,914.69
  5. Step 5: Solve for x
    x = 1,544,662,832,914.69/1,428,297.15
  6. Step 6: Final answer
    x = 1,081,471.62

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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.