Home / 657,628.20-984,692.70-419,682.60

Finding the Fourth Proportional to 657,628.20, 984,692.70 and 419,682.60

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Solution

The fourth proportional to 657,628.20, 984,692.70 and 419,682.60 is: 628,407.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,628.20 : 984,692.70 = 419,682.60 : x
  2. Step 2: Convert to fraction form
    657,628.20/984,692.70 = 419,682.60/x
  3. Step 3: Cross multiply
    657,628.20x = 984,692.70 × 419,682.60
  4. Step 4: Simplify right side
    657,628.20x = 413,258,392,537.02
  5. Step 5: Solve for x
    x = 413,258,392,537.02/657,628.20
  6. Step 6: Final answer
    x = 628,407.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.