Home / 1,188,399.55-1,782,768.75-389,743.60

Finding the Fourth Proportional to 1,188,399.55, 1,782,768.75 and 389,743.60

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Solution

The fourth proportional to 1,188,399.55, 1,782,768.75 and 389,743.60 is: 584,670.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,399.55 : 1,782,768.75 = 389,743.60 : x
  2. Step 2: Convert to fraction form
    1,188,399.55/1,782,768.75 = 389,743.60/x
  3. Step 3: Cross multiply
    1,188,399.55x = 1,782,768.75 × 389,743.60
  4. Step 4: Simplify right side
    1,188,399.55x = 694,822,710,592.50
  5. Step 5: Solve for x
    x = 694,822,710,592.50/1,188,399.55
  6. Step 6: Final answer
    x = 584,670.96

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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.