Home / 818,628.32-1,129,741-456,051.98

Finding the Fourth Proportional to 818,628.32, 1,129,741 and 456,051.98

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Solution

The fourth proportional to 818,628.32, 1,129,741 and 456,051.98 is: 629,370.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,628.32 : 1,129,741 = 456,051.98 : x
  2. Step 2: Convert to fraction form
    818,628.32/1,129,741 = 456,051.98/x
  3. Step 3: Cross multiply
    818,628.32x = 1,129,741 × 456,051.98
  4. Step 4: Simplify right side
    818,628.32x = 515,220,619,937.18
  5. Step 5: Solve for x
    x = 515,220,619,937.18/818,628.32
  6. Step 6: Final answer
    x = 629,370.63

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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.