Home / 745,921.24-1,029,371.44-406,389.52

Finding the Fourth Proportional to 745,921.24, 1,029,371.44 and 406,389.52

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Solution

The fourth proportional to 745,921.24, 1,029,371.44 and 406,389.52 is: 560,817.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,921.24 : 1,029,371.44 = 406,389.52 : x
  2. Step 2: Convert to fraction form
    745,921.24/1,029,371.44 = 406,389.52/x
  3. Step 3: Cross multiply
    745,921.24x = 1,029,371.44 × 406,389.52
  4. Step 4: Simplify right side
    745,921.24x = 418,325,765,403.31
  5. Step 5: Solve for x
    x = 418,325,765,403.31/745,921.24
  6. Step 6: Final answer
    x = 560,817.61

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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.