Home / 682,830.75-942,306.48-376,907.21

Finding the Fourth Proportional to 682,830.75, 942,306.48 and 376,907.21

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Solution

The fourth proportional to 682,830.75, 942,306.48 and 376,907.21 is: 520,131.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,830.75 : 942,306.48 = 376,907.21 : x
  2. Step 2: Convert to fraction form
    682,830.75/942,306.48 = 376,907.21/x
  3. Step 3: Cross multiply
    682,830.75x = 942,306.48 × 376,907.21
  4. Step 4: Simplify right side
    682,830.75x = 355,162,101,630.19
  5. Step 5: Solve for x
    x = 355,162,101,630.19/682,830.75
  6. Step 6: Final answer
    x = 520,131.97

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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.