Home / 389,466.35-584,458.73-220,986.35

Finding the Fourth Proportional to 389,466.35, 584,458.73 and 220,986.35

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Solution

The fourth proportional to 389,466.35, 584,458.73 and 220,986.35 is: 331,626.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,466.35 : 584,458.73 = 220,986.35 : x
  2. Step 2: Convert to fraction form
    389,466.35/584,458.73 = 220,986.35/x
  3. Step 3: Cross multiply
    389,466.35x = 584,458.73 × 220,986.35
  4. Step 4: Simplify right side
    389,466.35x = 129,157,400,363.40
  5. Step 5: Solve for x
    x = 129,157,400,363.40/389,466.35
  6. Step 6: Final answer
    x = 331,626.60

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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.