Home / 1,392,110.80-2,088,166.20-857,899.60

Finding the Fourth Proportional to 1,392,110.80, 2,088,166.20 and 857,899.60

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Solution

The fourth proportional to 1,392,110.80, 2,088,166.20 and 857,899.60 is: 1,286,849.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,392,110.80 : 2,088,166.20 = 857,899.60 : x
  2. Step 2: Convert to fraction form
    1,392,110.80/2,088,166.20 = 857,899.60/x
  3. Step 3: Cross multiply
    1,392,110.80x = 2,088,166.20 × 857,899.60
  4. Step 4: Simplify right side
    1,392,110.80x = 1,791,436,947,713.52
  5. Step 5: Solve for x
    x = 1,791,436,947,713.52/1,392,110.80
  6. Step 6: Final answer
    x = 1,286,849.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.