Home / 1,128,770.65-1,693,414.53-489,181.75

Finding the Fourth Proportional to 1,128,770.65, 1,693,414.53 and 489,181.75

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Solution

The fourth proportional to 1,128,770.65, 1,693,414.53 and 489,181.75 is: 733,884.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,770.65 : 1,693,414.53 = 489,181.75 : x
  2. Step 2: Convert to fraction form
    1,128,770.65/1,693,414.53 = 489,181.75/x
  3. Step 3: Cross multiply
    1,128,770.65x = 1,693,414.53 × 489,181.75
  4. Step 4: Simplify right side
    1,128,770.65x = 828,387,483,260.83
  5. Step 5: Solve for x
    x = 828,387,483,260.83/1,128,770.65
  6. Step 6: Final answer
    x = 733,884.68

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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.