Home / 1,189,271.26-1,783,891.38-290,720.92

Finding the Fourth Proportional to 1,189,271.26, 1,783,891.38 and 290,720.92

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Solution

The fourth proportional to 1,189,271.26, 1,783,891.38 and 290,720.92 is: 436,077.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,271.26 : 1,783,891.38 = 290,720.92 : x
  2. Step 2: Convert to fraction form
    1,189,271.26/1,783,891.38 = 290,720.92/x
  3. Step 3: Cross multiply
    1,189,271.26x = 1,783,891.38 × 290,720.92
  4. Step 4: Simplify right side
    1,189,271.26x = 518,614,543,173.67
  5. Step 5: Solve for x
    x = 518,614,543,173.67/1,189,271.26
  6. Step 6: Final answer
    x = 436,077.59

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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.