Home / 1,993,878.40-2,991,206.40-856,638.40

Finding the Fourth Proportional to 1,993,878.40, 2,991,206.40 and 856,638.40

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Solution

The fourth proportional to 1,993,878.40, 2,991,206.40 and 856,638.40 is: 1,285,124.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,993,878.40 : 2,991,206.40 = 856,638.40 : x
  2. Step 2: Convert to fraction form
    1,993,878.40/2,991,206.40 = 856,638.40/x
  3. Step 3: Cross multiply
    1,993,878.40x = 2,991,206.40 × 856,638.40
  4. Step 4: Simplify right side
    1,993,878.40x = 2,562,382,264,565.76
  5. Step 5: Solve for x
    x = 2,562,382,264,565.76/1,993,878.40
  6. Step 6: Final answer
    x = 1,285,124.64

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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.