Home / 1,128,770.64-1,693,414.54-489,181.76

Finding the Fourth Proportional to 1,128,770.64, 1,693,414.54 and 489,181.76

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Solution

The fourth proportional to 1,128,770.64, 1,693,414.54 and 489,181.76 is: 733,884.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,770.64 : 1,693,414.54 = 489,181.76 : x
  2. Step 2: Convert to fraction form
    1,128,770.64/1,693,414.54 = 489,181.76/x
  3. Step 3: Cross multiply
    1,128,770.64x = 1,693,414.54 × 489,181.76
  4. Step 4: Simplify right side
    1,128,770.64x = 828,387,505,086.79
  5. Step 5: Solve for x
    x = 828,387,505,086.79/1,128,770.64
  6. Step 6: Final answer
    x = 733,884.70

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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.