Home / 919,074.92-1,269,290.34-818,887.40

Finding the Fourth Proportional to 919,074.92, 1,269,290.34 and 818,887.40

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Solution

The fourth proportional to 919,074.92, 1,269,290.34 and 818,887.40 is: 1,130,926.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,074.92 : 1,269,290.34 = 818,887.40 : x
  2. Step 2: Convert to fraction form
    919,074.92/1,269,290.34 = 818,887.40/x
  3. Step 3: Cross multiply
    919,074.92x = 1,269,290.34 × 818,887.40
  4. Step 4: Simplify right side
    919,074.92x = 1,039,405,866,367.72
  5. Step 5: Solve for x
    x = 1,039,405,866,367.72/919,074.92
  6. Step 6: Final answer
    x = 1,130,926.16

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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.