Home / 1,131,986.45-1,697,979.67-290,538.20

Finding the Fourth Proportional to 1,131,986.45, 1,697,979.67 and 290,538.20

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Solution

The fourth proportional to 1,131,986.45, 1,697,979.67 and 290,538.20 is: 435,807.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,131,986.45 : 1,697,979.67 = 290,538.20 : x
  2. Step 2: Convert to fraction form
    1,131,986.45/1,697,979.67 = 290,538.20/x
  3. Step 3: Cross multiply
    1,131,986.45x = 1,697,979.67 × 290,538.20
  4. Step 4: Simplify right side
    1,131,986.45x = 493,327,947,742.15
  5. Step 5: Solve for x
    x = 493,327,947,742.15/1,131,986.45
  6. Step 6: Final answer
    x = 435,807.29

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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.