Home / 1,166,442.39-1,749,663.60-279,978.39

Finding the Fourth Proportional to 1,166,442.39, 1,749,663.60 and 279,978.39

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Solution

The fourth proportional to 1,166,442.39, 1,749,663.60 and 279,978.39 is: 419,967.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,166,442.39 : 1,749,663.60 = 279,978.39 : x
  2. Step 2: Convert to fraction form
    1,166,442.39/1,749,663.60 = 279,978.39/x
  3. Step 3: Cross multiply
    1,166,442.39x = 1,749,663.60 × 279,978.39
  4. Step 4: Simplify right side
    1,166,442.39x = 489,867,997,769.60
  5. Step 5: Solve for x
    x = 489,867,997,769.60/1,166,442.39
  6. Step 6: Final answer
    x = 419,967.59

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Double scale
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Similar ratio
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1.5x scale

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.