Home / 745,786.26-1,029,179.70-406,254.60

Finding the Fourth Proportional to 745,786.26, 1,029,179.70 and 406,254.60

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Solution

The fourth proportional to 745,786.26, 1,029,179.70 and 406,254.60 is: 560,628.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,786.26 : 1,029,179.70 = 406,254.60 : x
  2. Step 2: Convert to fraction form
    745,786.26/1,029,179.70 = 406,254.60/x
  3. Step 3: Cross multiply
    745,786.26x = 1,029,179.70 × 406,254.60
  4. Step 4: Simplify right side
    745,786.26x = 418,108,987,351.62
  5. Step 5: Solve for x
    x = 418,108,987,351.62/745,786.26
  6. Step 6: Final answer
    x = 560,628.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.