Home / 1,251,879.65-1,879,968.45-768,400.83

Finding the Fourth Proportional to 1,251,879.65, 1,879,968.45 and 768,400.83

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Solution

The fourth proportional to 1,251,879.65, 1,879,968.45 and 768,400.83 is: 1,153,920.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,251,879.65 : 1,879,968.45 = 768,400.83 : x
  2. Step 2: Convert to fraction form
    1,251,879.65/1,879,968.45 = 768,400.83/x
  3. Step 3: Cross multiply
    1,251,879.65x = 1,879,968.45 × 768,400.83
  4. Step 4: Simplify right side
    1,251,879.65x = 1,444,569,322,242.57
  5. Step 5: Solve for x
    x = 1,444,569,322,242.57/1,251,879.65
  6. Step 6: Final answer
    x = 1,153,920.28

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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.