Home / 818,696.16-1,129,793.27-456,113.43

Finding the Fourth Proportional to 818,696.16, 1,129,793.27 and 456,113.43

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Solution

The fourth proportional to 818,696.16, 1,129,793.27 and 456,113.43 is: 629,432.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,696.16 : 1,129,793.27 = 456,113.43 : x
  2. Step 2: Convert to fraction form
    818,696.16/1,129,793.27 = 456,113.43/x
  3. Step 3: Cross multiply
    818,696.16x = 1,129,793.27 × 456,113.43
  4. Step 4: Simplify right side
    818,696.16x = 515,313,881,290.05
  5. Step 5: Solve for x
    x = 515,313,881,290.05/818,696.16
  6. Step 6: Final answer
    x = 629,432.39

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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.