Home / 818,964.95-1,130,172.73-456,380.87

Finding the Fourth Proportional to 818,964.95, 1,130,172.73 and 456,380.87

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Solution

The fourth proportional to 818,964.95, 1,130,172.73 and 456,380.87 is: 629,806.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,964.95 : 1,130,172.73 = 456,380.87 : x
  2. Step 2: Convert to fraction form
    818,964.95/1,130,172.73 = 456,380.87/x
  3. Step 3: Cross multiply
    818,964.95x = 1,130,172.73 × 456,380.87
  4. Step 4: Simplify right side
    818,964.95x = 515,789,206,975.86
  5. Step 5: Solve for x
    x = 515,789,206,975.86/818,964.95
  6. Step 6: Final answer
    x = 629,806.21

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1.5x scale

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.