Home / 2,630,918.40-3,945,211.20-1,211,409.60

Finding the Fourth Proportional to 2,630,918.40, 3,945,211.20 and 1,211,409.60

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Solution

The fourth proportional to 2,630,918.40, 3,945,211.20 and 1,211,409.60 is: 1,816,577.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,630,918.40 : 3,945,211.20 = 1,211,409.60 : x
  2. Step 2: Convert to fraction form
    2,630,918.40/3,945,211.20 = 1,211,409.60/x
  3. Step 3: Cross multiply
    2,630,918.40x = 3,945,211.20 × 1,211,409.60
  4. Step 4: Simplify right side
    2,630,918.40x = 4,779,266,721,707.52
  5. Step 5: Solve for x
    x = 4,779,266,721,707.52/2,630,918.40
  6. Step 6: Final answer
    x = 1,816,577.33

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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.