Home / 1,189,272.26-1,783,892.88-290,721.92

Finding the Fourth Proportional to 1,189,272.26, 1,783,892.88 and 290,721.92

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Solution

The fourth proportional to 1,189,272.26, 1,783,892.88 and 290,721.92 is: 436,079.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,272.26 : 1,783,892.88 = 290,721.92 : x
  2. Step 2: Convert to fraction form
    1,189,272.26/1,783,892.88 = 290,721.92/x
  3. Step 3: Cross multiply
    1,189,272.26x = 1,783,892.88 × 290,721.92
  4. Step 4: Simplify right side
    1,189,272.26x = 518,616,763,147.93
  5. Step 5: Solve for x
    x = 518,616,763,147.93/1,189,272.26
  6. Step 6: Final answer
    x = 436,079.09

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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.