Home / 1,120,533.80-1,677,690.30-1,089,429.80

Finding the Fourth Proportional to 1,120,533.80, 1,677,690.30 and 1,089,429.80

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Solution

The fourth proportional to 1,120,533.80, 1,677,690.30 and 1,089,429.80 is: 1,631,120.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,533.80 : 1,677,690.30 = 1,089,429.80 : x
  2. Step 2: Convert to fraction form
    1,120,533.80/1,677,690.30 = 1,089,429.80/x
  3. Step 3: Cross multiply
    1,120,533.80x = 1,677,690.30 × 1,089,429.80
  4. Step 4: Simplify right side
    1,120,533.80x = 1,827,725,807,990.94
  5. Step 5: Solve for x
    x = 1,827,725,807,990.94/1,120,533.80
  6. Step 6: Final answer
    x = 1,631,120.64

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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.