Home / 682,865.72-942,673.58-396,330.44

Finding the Fourth Proportional to 682,865.72, 942,673.58 and 396,330.44

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Solution

The fourth proportional to 682,865.72, 942,673.58 and 396,330.44 is: 547,121.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,865.72 : 942,673.58 = 396,330.44 : x
  2. Step 2: Convert to fraction form
    682,865.72/942,673.58 = 396,330.44/x
  3. Step 3: Cross multiply
    682,865.72x = 942,673.58 × 396,330.44
  4. Step 4: Simplify right side
    682,865.72x = 373,610,234,737.78
  5. Step 5: Solve for x
    x = 373,610,234,737.78/682,865.72
  6. Step 6: Final answer
    x = 547,121.09

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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.