Home / 1,290,288.60-1,933,683.30-862,608.60

Finding the Fourth Proportional to 1,290,288.60, 1,933,683.30 and 862,608.60

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Solution

The fourth proportional to 1,290,288.60, 1,933,683.30 and 862,608.60 is: 1,292,743.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,290,288.60 : 1,933,683.30 = 862,608.60 : x
  2. Step 2: Convert to fraction form
    1,290,288.60/1,933,683.30 = 862,608.60/x
  3. Step 3: Cross multiply
    1,290,288.60x = 1,933,683.30 × 862,608.60
  4. Step 4: Simplify right side
    1,290,288.60x = 1,668,011,844,256.38
  5. Step 5: Solve for x
    x = 1,668,011,844,256.38/1,290,288.60
  6. Step 6: Final answer
    x = 1,292,743.22

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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.