Home / 850,208-1,275,386.48-219,120.80

Finding the Fourth Proportional to 850,208, 1,275,386.48 and 219,120.80

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Solution

The fourth proportional to 850,208, 1,275,386.48 and 219,120.80 is: 328,700.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    850,208 : 1,275,386.48 = 219,120.80 : x
  2. Step 2: Convert to fraction form
    850,208/1,275,386.48 = 219,120.80/x
  3. Step 3: Cross multiply
    850,208x = 1,275,386.48 × 219,120.80
  4. Step 4: Simplify right side
    850,208x = 279,463,705,806.78
  5. Step 5: Solve for x
    x = 279,463,705,806.78/850,208
  6. Step 6: Final answer
    x = 328,700.40

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1.5x scale

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.