Home / 683,431.48-942,975.84-396,778.96

Finding the Fourth Proportional to 683,431.48, 942,975.84 and 396,778.96

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Solution

The fourth proportional to 683,431.48, 942,975.84 and 396,778.96 is: 547,462.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,431.48 : 942,975.84 = 396,778.96 : x
  2. Step 2: Convert to fraction form
    683,431.48/942,975.84 = 396,778.96/x
  3. Step 3: Cross multiply
    683,431.48x = 942,975.84 × 396,778.96
  4. Step 4: Simplify right side
    683,431.48x = 374,152,973,100.33
  5. Step 5: Solve for x
    x = 374,152,973,100.33/683,431.48
  6. Step 6: Final answer
    x = 547,462.30

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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.