Home / 818,697.16-1,129,794.64-456,114.43

Finding the Fourth Proportional to 818,697.16, 1,129,794.64 and 456,114.43

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Solution

The fourth proportional to 818,697.16, 1,129,794.64 and 456,114.43 is: 629,433.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,697.16 : 1,129,794.64 = 456,114.43 : x
  2. Step 2: Convert to fraction form
    818,697.16/1,129,794.64 = 456,114.43/x
  3. Step 3: Cross multiply
    818,697.16x = 1,129,794.64 × 456,114.43
  4. Step 4: Simplify right side
    818,697.16x = 515,315,638,240.66
  5. Step 5: Solve for x
    x = 515,315,638,240.66/818,697.16
  6. Step 6: Final answer
    x = 629,433.77

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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.