Home / 921,690.20-1,387,514.52-828,997.86

Finding the Fourth Proportional to 921,690.20, 1,387,514.52 and 828,997.86

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Solution

The fourth proportional to 921,690.20, 1,387,514.52 and 828,997.86 is: 1,247,975.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,690.20 : 1,387,514.52 = 828,997.86 : x
  2. Step 2: Convert to fraction form
    921,690.20/1,387,514.52 = 828,997.86/x
  3. Step 3: Cross multiply
    921,690.20x = 1,387,514.52 × 828,997.86
  4. Step 4: Simplify right side
    921,690.20x = 1,150,246,567,798.93
  5. Step 5: Solve for x
    x = 1,150,246,567,798.93/921,690.20
  6. Step 6: Final answer
    x = 1,247,975.26

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.