Home / 1,263,638.40-1,895,557.32-422,193.12

Finding the Fourth Proportional to 1,263,638.40, 1,895,557.32 and 422,193.12

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Solution

The fourth proportional to 1,263,638.40, 1,895,557.32 and 422,193.12 is: 633,323.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,263,638.40 : 1,895,557.32 = 422,193.12 : x
  2. Step 2: Convert to fraction form
    1,263,638.40/1,895,557.32 = 422,193.12/x
  3. Step 3: Cross multiply
    1,263,638.40x = 1,895,557.32 × 422,193.12
  4. Step 4: Simplify right side
    1,263,638.40x = 800,291,259,069.64
  5. Step 5: Solve for x
    x = 800,291,259,069.64/1,263,638.40
  6. Step 6: Final answer
    x = 633,323.00

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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.