Home / 1,051,792.56-1,576,551.42-420,012

Finding the Fourth Proportional to 1,051,792.56, 1,576,551.42 and 420,012

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Solution

The fourth proportional to 1,051,792.56, 1,576,551.42 and 420,012 is: 629,563.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,051,792.56 : 1,576,551.42 = 420,012 : x
  2. Step 2: Convert to fraction form
    1,051,792.56/1,576,551.42 = 420,012/x
  3. Step 3: Cross multiply
    1,051,792.56x = 1,576,551.42 × 420,012
  4. Step 4: Simplify right side
    1,051,792.56x = 662,170,515,017.04
  5. Step 5: Solve for x
    x = 662,170,515,017.04/1,051,792.56
  6. Step 6: Final answer
    x = 629,563.79

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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.