Home / 828,300.80-1,243,107.30-323,103.80

Finding the Fourth Proportional to 828,300.80, 1,243,107.30 and 323,103.80

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Solution

The fourth proportional to 828,300.80, 1,243,107.30 and 323,103.80 is: 484,911.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,300.80 : 1,243,107.30 = 323,103.80 : x
  2. Step 2: Convert to fraction form
    828,300.80/1,243,107.30 = 323,103.80/x
  3. Step 3: Cross multiply
    828,300.80x = 1,243,107.30 × 323,103.80
  4. Step 4: Simplify right side
    828,300.80x = 401,652,692,437.74
  5. Step 5: Solve for x
    x = 401,652,692,437.74/828,300.80
  6. Step 6: Final answer
    x = 484,911.63

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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.