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Finding the Fourth Proportional to 641,725.75, 885,814.82 and 373,453.75

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Solution

The fourth proportional to 641,725.75, 885,814.82 and 373,453.75 is: 515,501.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,725.75 : 885,814.82 = 373,453.75 : x
  2. Step 2: Convert to fraction form
    641,725.75/885,814.82 = 373,453.75/x
  3. Step 3: Cross multiply
    641,725.75x = 885,814.82 × 373,453.75
  4. Step 4: Simplify right side
    641,725.75x = 330,810,866,334.58
  5. Step 5: Solve for x
    x = 330,810,866,334.58/641,725.75
  6. Step 6: Final answer
    x = 515,501.94

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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.