Home / 1,012,987.37-1,519,999.45-414,390.89

Finding the Fourth Proportional to 1,012,987.37, 1,519,999.45 and 414,390.89

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Solution

The fourth proportional to 1,012,987.37, 1,519,999.45 and 414,390.89 is: 621,798.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,012,987.37 : 1,519,999.45 = 414,390.89 : x
  2. Step 2: Convert to fraction form
    1,012,987.37/1,519,999.45 = 414,390.89/x
  3. Step 3: Cross multiply
    1,012,987.37x = 1,519,999.45 × 414,390.89
  4. Step 4: Simplify right side
    1,012,987.37x = 629,873,916,249.04
  5. Step 5: Solve for x
    x = 629,873,916,249.04/1,012,987.37
  6. Step 6: Final answer
    x = 621,798.39

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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.