Home / 455,202.80-682,804.20-305,903.60

Finding the Fourth Proportional to 455,202.80, 682,804.20 and 305,903.60

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Solution

The fourth proportional to 455,202.80, 682,804.20 and 305,903.60 is: 458,855.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,202.80 : 682,804.20 = 305,903.60 : x
  2. Step 2: Convert to fraction form
    455,202.80/682,804.20 = 305,903.60/x
  3. Step 3: Cross multiply
    455,202.80x = 682,804.20 × 305,903.60
  4. Step 4: Simplify right side
    455,202.80x = 208,872,262,875.12
  5. Step 5: Solve for x
    x = 208,872,262,875.12/455,202.80
  6. Step 6: Final answer
    x = 458,855.40

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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.