Home / 1,099,318.80-1,649,269.80-389,272.80

Finding the Fourth Proportional to 1,099,318.80, 1,649,269.80 and 389,272.80

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Solution

The fourth proportional to 1,099,318.80, 1,649,269.80 and 389,272.80 is: 584,012.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,099,318.80 : 1,649,269.80 = 389,272.80 : x
  2. Step 2: Convert to fraction form
    1,099,318.80/1,649,269.80 = 389,272.80/x
  3. Step 3: Cross multiply
    1,099,318.80x = 1,649,269.80 × 389,272.80
  4. Step 4: Simplify right side
    1,099,318.80x = 642,015,873,001.44
  5. Step 5: Solve for x
    x = 642,015,873,001.44/1,099,318.80
  6. Step 6: Final answer
    x = 584,012.46

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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.