Home / 1,028,622.41-1,542,938.73-421,742.21

Finding the Fourth Proportional to 1,028,622.41, 1,542,938.73 and 421,742.21

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Solution

The fourth proportional to 1,028,622.41, 1,542,938.73 and 421,742.21 is: 632,615.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,028,622.41 : 1,542,938.73 = 421,742.21 : x
  2. Step 2: Convert to fraction form
    1,028,622.41/1,542,938.73 = 421,742.21/x
  3. Step 3: Cross multiply
    1,028,622.41x = 1,542,938.73 × 421,742.21
  4. Step 4: Simplify right side
    1,028,622.41x = 650,722,380,588.57
  5. Step 5: Solve for x
    x = 650,722,380,588.57/1,028,622.41
  6. Step 6: Final answer
    x = 632,615.40

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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.