Home / 957,969.64-1,321,979.70-528,289.48

Finding the Fourth Proportional to 957,969.64, 1,321,979.70 and 528,289.48

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Solution

The fourth proportional to 957,969.64, 1,321,979.70 and 528,289.48 is: 729,029.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    957,969.64 : 1,321,979.70 = 528,289.48 : x
  2. Step 2: Convert to fraction form
    957,969.64/1,321,979.70 = 528,289.48/x
  3. Step 3: Cross multiply
    957,969.64x = 1,321,979.70 × 528,289.48
  4. Step 4: Simplify right side
    957,969.64x = 698,387,968,283.56
  5. Step 5: Solve for x
    x = 698,387,968,283.56/957,969.64
  6. Step 6: Final answer
    x = 729,029.33

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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.