Home / 451,945.20-677,917.80-114,985.20

Finding the Fourth Proportional to 451,945.20, 677,917.80 and 114,985.20

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Solution

The fourth proportional to 451,945.20, 677,917.80 and 114,985.20 is: 172,477.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,945.20 : 677,917.80 = 114,985.20 : x
  2. Step 2: Convert to fraction form
    451,945.20/677,917.80 = 114,985.20/x
  3. Step 3: Cross multiply
    451,945.20x = 677,917.80 × 114,985.20
  4. Step 4: Simplify right side
    451,945.20x = 77,950,513,816.56
  5. Step 5: Solve for x
    x = 77,950,513,816.56/451,945.20
  6. Step 6: Final answer
    x = 172,477.80

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1.5x scale

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.