Home / 685,661.80-1,027,862.58-236,275.72

Finding the Fourth Proportional to 685,661.80, 1,027,862.58 and 236,275.72

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Solution

The fourth proportional to 685,661.80, 1,027,862.58 and 236,275.72 is: 354,196.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,661.80 : 1,027,862.58 = 236,275.72 : x
  2. Step 2: Convert to fraction form
    685,661.80/1,027,862.58 = 236,275.72/x
  3. Step 3: Cross multiply
    685,661.80x = 1,027,862.58 × 236,275.72
  4. Step 4: Simplify right side
    685,661.80x = 242,858,971,150.56
  5. Step 5: Solve for x
    x = 242,858,971,150.56/685,661.80
  6. Step 6: Final answer
    x = 354,196.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.