Home / 641,725.57-885,588.29-355,250.44

Finding the Fourth Proportional to 641,725.57, 885,588.29 and 355,250.44

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Solution

The fourth proportional to 641,725.57, 885,588.29 and 355,250.44 is: 490,249.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,725.57 : 885,588.29 = 355,250.44 : x
  2. Step 2: Convert to fraction form
    641,725.57/885,588.29 = 355,250.44/x
  3. Step 3: Cross multiply
    641,725.57x = 885,588.29 × 355,250.44
  4. Step 4: Simplify right side
    641,725.57x = 314,605,629,681.35
  5. Step 5: Solve for x
    x = 314,605,629,681.35/641,725.57
  6. Step 6: Final answer
    x = 490,249.48

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1.5x scale

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.