Home / 682,918.88-942,403.35-376,988.69

Finding the Fourth Proportional to 682,918.88, 942,403.35 and 376,988.69

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Solution

The fourth proportional to 682,918.88, 942,403.35 and 376,988.69 is: 520,230.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,918.88 : 942,403.35 = 376,988.69 : x
  2. Step 2: Convert to fraction form
    682,918.88/942,403.35 = 376,988.69/x
  3. Step 3: Cross multiply
    682,918.88x = 942,403.35 × 376,988.69
  4. Step 4: Simplify right side
    682,918.88x = 355,275,403,756.14
  5. Step 5: Solve for x
    x = 355,275,403,756.14/682,918.88
  6. Step 6: Final answer
    x = 520,230.76

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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.