Home / 818,652.42-1,129,711.86-456,057.54

Finding the Fourth Proportional to 818,652.42, 1,129,711.86 and 456,057.54

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Solution

The fourth proportional to 818,652.42, 1,129,711.86 and 456,057.54 is: 629,343.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,652.42 : 1,129,711.86 = 456,057.54 : x
  2. Step 2: Convert to fraction form
    818,652.42/1,129,711.86 = 456,057.54/x
  3. Step 3: Cross multiply
    818,652.42x = 1,129,711.86 × 456,057.54
  4. Step 4: Simplify right side
    818,652.42x = 515,213,611,780.42
  5. Step 5: Solve for x
    x = 515,213,611,780.42/818,652.42
  6. Step 6: Final answer
    x = 629,343.54

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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.