Home / 828,124.40-1,241,879.40-329,385.20

Finding the Fourth Proportional to 828,124.40, 1,241,879.40 and 329,385.20

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Solution

The fourth proportional to 828,124.40, 1,241,879.40 and 329,385.20 is: 493,955.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,124.40 : 1,241,879.40 = 329,385.20 : x
  2. Step 2: Convert to fraction form
    828,124.40/1,241,879.40 = 329,385.20/x
  3. Step 3: Cross multiply
    828,124.40x = 1,241,879.40 × 329,385.20
  4. Step 4: Simplify right side
    828,124.40x = 409,056,694,544.88
  5. Step 5: Solve for x
    x = 409,056,694,544.88/828,124.40
  6. Step 6: Final answer
    x = 493,955.61

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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.