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Finding the Fourth Proportional to 682,597.52, 942,171.95 and 396,209.87

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Solution

The fourth proportional to 682,597.52, 942,171.95 and 396,209.87 is: 546,878.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,597.52 : 942,171.95 = 396,209.87 : x
  2. Step 2: Convert to fraction form
    682,597.52/942,171.95 = 396,209.87/x
  3. Step 3: Cross multiply
    682,597.52x = 942,171.95 × 396,209.87
  4. Step 4: Simplify right side
    682,597.52x = 373,297,819,135.24
  5. Step 5: Solve for x
    x = 373,297,819,135.24/682,597.52
  6. Step 6: Final answer
    x = 546,878.37

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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.