Home / 2,128,407.40-3,193,647.90-1,622,794.60

Finding the Fourth Proportional to 2,128,407.40, 3,193,647.90 and 1,622,794.60

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Solution

The fourth proportional to 2,128,407.40, 3,193,647.90 and 1,622,794.60 is: 2,434,982.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,128,407.40 : 3,193,647.90 = 1,622,794.60 : x
  2. Step 2: Convert to fraction form
    2,128,407.40/3,193,647.90 = 1,622,794.60/x
  3. Step 3: Cross multiply
    2,128,407.40x = 3,193,647.90 × 1,622,794.60
  4. Step 4: Simplify right side
    2,128,407.40x = 5,182,634,566,421.34
  5. Step 5: Solve for x
    x = 5,182,634,566,421.34/2,128,407.40
  6. Step 6: Final answer
    x = 2,434,982.40

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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.