Home / 727,918.60-1,091,360.94-278,260.60

Finding the Fourth Proportional to 727,918.60, 1,091,360.94 and 278,260.60

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Solution

The fourth proportional to 727,918.60, 1,091,360.94 and 278,260.60 is: 417,193.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,918.60 : 1,091,360.94 = 278,260.60 : x
  2. Step 2: Convert to fraction form
    727,918.60/1,091,360.94 = 278,260.60/x
  3. Step 3: Cross multiply
    727,918.60x = 1,091,360.94 × 278,260.60
  4. Step 4: Simplify right side
    727,918.60x = 303,682,749,980.96
  5. Step 5: Solve for x
    x = 303,682,749,980.96/727,918.60
  6. Step 6: Final answer
    x = 417,193.28

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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.