Home / 1,119,744.20-1,680,005.10-489,110.60

Finding the Fourth Proportional to 1,119,744.20, 1,680,005.10 and 489,110.60

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Solution

The fourth proportional to 1,119,744.20, 1,680,005.10 and 489,110.60 is: 733,835.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,744.20 : 1,680,005.10 = 489,110.60 : x
  2. Step 2: Convert to fraction form
    1,119,744.20/1,680,005.10 = 489,110.60/x
  3. Step 3: Cross multiply
    1,119,744.20x = 1,680,005.10 × 489,110.60
  4. Step 4: Simplify right side
    1,119,744.20x = 821,708,302,464.06
  5. Step 5: Solve for x
    x = 821,708,302,464.06/1,119,744.20
  6. Step 6: Final answer
    x = 733,835.73

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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.