Home / 1,268,956.80-1,902,974.40-637,660.80

Finding the Fourth Proportional to 1,268,956.80, 1,902,974.40 and 637,660.80

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Solution

The fourth proportional to 1,268,956.80, 1,902,974.40 and 637,660.80 is: 956,259.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,268,956.80 : 1,902,974.40 = 637,660.80 : x
  2. Step 2: Convert to fraction form
    1,268,956.80/1,902,974.40 = 637,660.80/x
  3. Step 3: Cross multiply
    1,268,956.80x = 1,902,974.40 × 637,660.80
  4. Step 4: Simplify right side
    1,268,956.80x = 1,213,452,178,283.52
  5. Step 5: Solve for x
    x = 1,213,452,178,283.52/1,268,956.80
  6. Step 6: Final answer
    x = 956,259.64

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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.