Home / 1,409,821.62-2,114,037.81-511,128.42

Finding the Fourth Proportional to 1,409,821.62, 2,114,037.81 and 511,128.42

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Solution

The fourth proportional to 1,409,821.62, 2,114,037.81 and 511,128.42 is: 766,440.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,409,821.62 : 2,114,037.81 = 511,128.42 : x
  2. Step 2: Convert to fraction form
    1,409,821.62/2,114,037.81 = 511,128.42/x
  3. Step 3: Cross multiply
    1,409,821.62x = 2,114,037.81 × 511,128.42
  4. Step 4: Simplify right side
    1,409,821.62x = 1,080,544,805,645.56
  5. Step 5: Solve for x
    x = 1,080,544,805,645.56/1,409,821.62
  6. Step 6: Final answer
    x = 766,440.80

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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.