Home / 1,218,615.73-1,828,006.56-320,055.90

Finding the Fourth Proportional to 1,218,615.73, 1,828,006.56 and 320,055.90

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Solution

The fourth proportional to 1,218,615.73, 1,828,006.56 and 320,055.90 is: 480,105.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,615.73 : 1,828,006.56 = 320,055.90 : x
  2. Step 2: Convert to fraction form
    1,218,615.73/1,828,006.56 = 320,055.90/x
  3. Step 3: Cross multiply
    1,218,615.73x = 1,828,006.56 × 320,055.90
  4. Step 4: Simplify right side
    1,218,615.73x = 585,064,284,766.70
  5. Step 5: Solve for x
    x = 585,064,284,766.70/1,218,615.73
  6. Step 6: Final answer
    x = 480,105.64

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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.