Home / 3,218,855.60-4,828,283.40-1,620,801.20

Finding the Fourth Proportional to 3,218,855.60, 4,828,283.40 and 1,620,801.20

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Solution

The fourth proportional to 3,218,855.60, 4,828,283.40 and 1,620,801.20 is: 2,431,201.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,218,855.60 : 4,828,283.40 = 1,620,801.20 : x
  2. Step 2: Convert to fraction form
    3,218,855.60/4,828,283.40 = 1,620,801.20/x
  3. Step 3: Cross multiply
    3,218,855.60x = 4,828,283.40 × 1,620,801.20
  4. Step 4: Simplify right side
    3,218,855.60x = 7,825,687,528,660.08
  5. Step 5: Solve for x
    x = 7,825,687,528,660.08/3,218,855.60
  6. Step 6: Final answer
    x = 2,431,201.80

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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.