Home / 768,217.09-1,060,139.77-424,053.21

Finding the Fourth Proportional to 768,217.09, 1,060,139.77 and 424,053.21

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Solution

The fourth proportional to 768,217.09, 1,060,139.77 and 424,053.21 is: 585,193.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,217.09 : 1,060,139.77 = 424,053.21 : x
  2. Step 2: Convert to fraction form
    768,217.09/1,060,139.77 = 424,053.21/x
  3. Step 3: Cross multiply
    768,217.09x = 1,060,139.77 × 424,053.21
  4. Step 4: Simplify right side
    768,217.09x = 449,555,667,481.51
  5. Step 5: Solve for x
    x = 449,555,667,481.51/768,217.09
  6. Step 6: Final answer
    x = 585,193.53

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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.