Home / 1,079,020.80-1,618,725.60-447,998.40

Finding the Fourth Proportional to 1,079,020.80, 1,618,725.60 and 447,998.40

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Solution

The fourth proportional to 1,079,020.80, 1,618,725.60 and 447,998.40 is: 672,078.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,079,020.80 : 1,618,725.60 = 447,998.40 : x
  2. Step 2: Convert to fraction form
    1,079,020.80/1,618,725.60 = 447,998.40/x
  3. Step 3: Cross multiply
    1,079,020.80x = 1,618,725.60 × 447,998.40
  4. Step 4: Simplify right side
    1,079,020.80x = 725,186,478,839.04
  5. Step 5: Solve for x
    x = 725,186,478,839.04/1,079,020.80
  6. Step 6: Final answer
    x = 672,078.31

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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.