Home / 1,428,246.56-1,970,979.36-783,670.88

Finding the Fourth Proportional to 1,428,246.56, 1,970,979.36 and 783,670.88

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Solution

The fourth proportional to 1,428,246.56, 1,970,979.36 and 783,670.88 is: 1,081,465.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,428,246.56 : 1,970,979.36 = 783,670.88 : x
  2. Step 2: Convert to fraction form
    1,428,246.56/1,970,979.36 = 783,670.88/x
  3. Step 3: Cross multiply
    1,428,246.56x = 1,970,979.36 × 783,670.88
  4. Step 4: Simplify right side
    1,428,246.56x = 1,544,599,129,513.04
  5. Step 5: Solve for x
    x = 1,544,599,129,513.04/1,428,246.56
  6. Step 6: Final answer
    x = 1,081,465.32

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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.