Home / 1,271,510.80-1,907,266.20-822,738.40

Finding the Fourth Proportional to 1,271,510.80, 1,907,266.20 and 822,738.40

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Solution

The fourth proportional to 1,271,510.80, 1,907,266.20 and 822,738.40 is: 1,234,107.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,271,510.80 : 1,907,266.20 = 822,738.40 : x
  2. Step 2: Convert to fraction form
    1,271,510.80/1,907,266.20 = 822,738.40/x
  3. Step 3: Cross multiply
    1,271,510.80x = 1,907,266.20 × 822,738.40
  4. Step 4: Simplify right side
    1,271,510.80x = 1,569,181,141,762.08
  5. Step 5: Solve for x
    x = 1,569,181,141,762.08/1,271,510.80
  6. Step 6: Final answer
    x = 1,234,107.60

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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.