Home / 451,629.20-677,443.80-119,205.20

Finding the Fourth Proportional to 451,629.20, 677,443.80 and 119,205.20

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Solution

The fourth proportional to 451,629.20, 677,443.80 and 119,205.20 is: 178,807.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,629.20 : 677,443.80 = 119,205.20 : x
  2. Step 2: Convert to fraction form
    451,629.20/677,443.80 = 119,205.20/x
  3. Step 3: Cross multiply
    451,629.20x = 677,443.80 × 119,205.20
  4. Step 4: Simplify right side
    451,629.20x = 80,754,823,667.76
  5. Step 5: Solve for x
    x = 80,754,823,667.76/451,629.20
  6. Step 6: Final answer
    x = 178,807.80

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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.