Home / 1,145,843.42-1,580,670.92-778,339.46

Finding the Fourth Proportional to 1,145,843.42, 1,580,670.92 and 778,339.46

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Solution

The fourth proportional to 1,145,843.42, 1,580,670.92 and 778,339.46 is: 1,073,705.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,145,843.42 : 1,580,670.92 = 778,339.46 : x
  2. Step 2: Convert to fraction form
    1,145,843.42/1,580,670.92 = 778,339.46/x
  3. Step 3: Cross multiply
    1,145,843.42x = 1,580,670.92 × 778,339.46
  4. Step 4: Simplify right side
    1,145,843.42x = 1,230,298,556,208.03
  5. Step 5: Solve for x
    x = 1,230,298,556,208.03/1,145,843.42
  6. Step 6: Final answer
    x = 1,073,705.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.