Home / 1,419,809.96-1,961,410.48-1,228,491.20

Finding the Fourth Proportional to 1,419,809.96, 1,961,410.48 and 1,228,491.20

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Solution

The fourth proportional to 1,419,809.96, 1,961,410.48 and 1,228,491.20 is: 1,697,111.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,419,809.96 : 1,961,410.48 = 1,228,491.20 : x
  2. Step 2: Convert to fraction form
    1,419,809.96/1,961,410.48 = 1,228,491.20/x
  3. Step 3: Cross multiply
    1,419,809.96x = 1,961,410.48 × 1,228,491.20
  4. Step 4: Simplify right side
    1,419,809.96x = 2,409,575,514,267.78
  5. Step 5: Solve for x
    x = 2,409,575,514,267.78/1,419,809.96
  6. Step 6: Final answer
    x = 1,697,111.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.