Home / 1,272,290.76-1,908,392.40-325,669.68

Finding the Fourth Proportional to 1,272,290.76, 1,908,392.40 and 325,669.68

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Solution

The fourth proportional to 1,272,290.76, 1,908,392.40 and 325,669.68 is: 488,493.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,290.76 : 1,908,392.40 = 325,669.68 : x
  2. Step 2: Convert to fraction form
    1,272,290.76/1,908,392.40 = 325,669.68/x
  3. Step 3: Cross multiply
    1,272,290.76x = 1,908,392.40 × 325,669.68
  4. Step 4: Simplify right side
    1,272,290.76x = 621,505,542,222.43
  5. Step 5: Solve for x
    x = 621,505,542,222.43/1,272,290.76
  6. Step 6: Final answer
    x = 488,493.32

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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.