Home / 818,627.32-1,129,739.62-456,050.98

Finding the Fourth Proportional to 818,627.32, 1,129,739.62 and 456,050.98

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Solution

The fourth proportional to 818,627.32, 1,129,739.62 and 456,050.98 is: 629,369.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,627.32 : 1,129,739.62 = 456,050.98 : x
  2. Step 2: Convert to fraction form
    818,627.32/1,129,739.62 = 456,050.98/x
  3. Step 3: Cross multiply
    818,627.32x = 1,129,739.62 × 456,050.98
  4. Step 4: Simplify right side
    818,627.32x = 515,218,860,845.83
  5. Step 5: Solve for x
    x = 515,218,860,845.83/818,627.32
  6. Step 6: Final answer
    x = 629,369.25

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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.