Home / 1,099,219.80-1,648,829.70-990,744.60

Finding the Fourth Proportional to 1,099,219.80, 1,648,829.70 and 990,744.60

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Solution

The fourth proportional to 1,099,219.80, 1,648,829.70 and 990,744.60 is: 1,486,116.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,099,219.80 : 1,648,829.70 = 990,744.60 : x
  2. Step 2: Convert to fraction form
    1,099,219.80/1,648,829.70 = 990,744.60/x
  3. Step 3: Cross multiply
    1,099,219.80x = 1,648,829.70 × 990,744.60
  4. Step 4: Simplify right side
    1,099,219.80x = 1,633,569,121,594.62
  5. Step 5: Solve for x
    x = 1,633,569,121,594.62/1,099,219.80
  6. Step 6: Final answer
    x = 1,486,116.90

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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.