Home / 778,135.86-1,074,095.37-455,950.26

Finding the Fourth Proportional to 778,135.86, 1,074,095.37 and 455,950.26

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Solution

The fourth proportional to 778,135.86, 1,074,095.37 and 455,950.26 is: 629,368.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,135.86 : 1,074,095.37 = 455,950.26 : x
  2. Step 2: Convert to fraction form
    778,135.86/1,074,095.37 = 455,950.26/x
  3. Step 3: Cross multiply
    778,135.86x = 1,074,095.37 × 455,950.26
  4. Step 4: Simplify right side
    778,135.86x = 489,734,063,216.30
  5. Step 5: Solve for x
    x = 489,734,063,216.30/778,135.86
  6. Step 6: Final answer
    x = 629,368.33

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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.