Home / 957,968.64-1,321,978.32-528,288.48

Finding the Fourth Proportional to 957,968.64, 1,321,978.32 and 528,288.48

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Solution

The fourth proportional to 957,968.64, 1,321,978.32 and 528,288.48 is: 729,027.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    957,968.64 : 1,321,978.32 = 528,288.48 : x
  2. Step 2: Convert to fraction form
    957,968.64/1,321,978.32 = 528,288.48/x
  3. Step 3: Cross multiply
    957,968.64x = 1,321,978.32 × 528,288.48
  4. Step 4: Simplify right side
    957,968.64x = 698,385,917,265.75
  5. Step 5: Solve for x
    x = 698,385,917,265.75/957,968.64
  6. Step 6: Final answer
    x = 729,027.95

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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.