Home / 1,269,321.64-1,904,891.52-540,355.93

Finding the Fourth Proportional to 1,269,321.64, 1,904,891.52 and 540,355.93

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Solution

The fourth proportional to 1,269,321.64, 1,904,891.52 and 540,355.93 is: 810,920.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,269,321.64 : 1,904,891.52 = 540,355.93 : x
  2. Step 2: Convert to fraction form
    1,269,321.64/1,904,891.52 = 540,355.93/x
  3. Step 3: Cross multiply
    1,269,321.64x = 1,904,891.52 × 540,355.93
  4. Step 4: Simplify right side
    1,269,321.64x = 1,029,319,431,044.87
  5. Step 5: Solve for x
    x = 1,029,319,431,044.87/1,269,321.64
  6. Step 6: Final answer
    x = 810,920.89

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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.