Home / 1,079,021.80-1,618,727.10-447,999.40

Finding the Fourth Proportional to 1,079,021.80, 1,618,727.10 and 447,999.40

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Solution

The fourth proportional to 1,079,021.80, 1,618,727.10 and 447,999.40 is: 672,079.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,079,021.80 : 1,618,727.10 = 447,999.40 : x
  2. Step 2: Convert to fraction form
    1,079,021.80/1,618,727.10 = 447,999.40/x
  3. Step 3: Cross multiply
    1,079,021.80x = 1,618,727.10 × 447,999.40
  4. Step 4: Simplify right side
    1,079,021.80x = 725,188,769,563.74
  5. Step 5: Solve for x
    x = 725,188,769,563.74/1,079,021.80
  6. Step 6: Final answer
    x = 672,079.81

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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.