Home / 1,219,251.08-1,683,149.94-812,030.60

Finding the Fourth Proportional to 1,219,251.08, 1,683,149.94 and 812,030.60

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Solution

The fourth proportional to 1,219,251.08, 1,683,149.94 and 812,030.60 is: 1,120,990.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,219,251.08 : 1,683,149.94 = 812,030.60 : x
  2. Step 2: Convert to fraction form
    1,219,251.08/1,683,149.94 = 812,030.60/x
  3. Step 3: Cross multiply
    1,219,251.08x = 1,683,149.94 × 812,030.60
  4. Step 4: Simplify right side
    1,219,251.08x = 1,366,769,255,668.16
  5. Step 5: Solve for x
    x = 1,366,769,255,668.16/1,219,251.08
  6. Step 6: Final answer
    x = 1,120,990.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.