Home / 1,315,964.80-1,973,947.20-1,091,578.60

Finding the Fourth Proportional to 1,315,964.80, 1,973,947.20 and 1,091,578.60

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Solution

The fourth proportional to 1,315,964.80, 1,973,947.20 and 1,091,578.60 is: 1,637,367.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,964.80 : 1,973,947.20 = 1,091,578.60 : x
  2. Step 2: Convert to fraction form
    1,315,964.80/1,973,947.20 = 1,091,578.60/x
  3. Step 3: Cross multiply
    1,315,964.80x = 1,973,947.20 × 1,091,578.60
  4. Step 4: Simplify right side
    1,315,964.80x = 2,154,718,521,049.92
  5. Step 5: Solve for x
    x = 2,154,718,521,049.92/1,315,964.80
  6. Step 6: Final answer
    x = 1,637,367.90

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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.