Home / 1,131,967.15-1,562,991.48-869,907.36

Finding the Fourth Proportional to 1,131,967.15, 1,562,991.48 and 869,907.36

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Solution

The fourth proportional to 1,131,967.15, 1,562,991.48 and 869,907.36 is: 1,201,145.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,131,967.15 : 1,562,991.48 = 869,907.36 : x
  2. Step 2: Convert to fraction form
    1,131,967.15/1,562,991.48 = 869,907.36/x
  3. Step 3: Cross multiply
    1,131,967.15x = 1,562,991.48 × 869,907.36
  4. Step 4: Simplify right side
    1,131,967.15x = 1,359,657,797,930.51
  5. Step 5: Solve for x
    x = 1,359,657,797,930.51/1,131,967.15
  6. Step 6: Final answer
    x = 1,201,145.98

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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.