Finding the Fourth Proportional to 821,675.74, 1,238,122.14 and 675,197.31
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Solution
The fourth proportional to 821,675.74, 1,238,122.14 and 675,197.31 is: 1,017,404.68
Step by Step Solution
- Step 1: Write the proportion equation
821,675.74 : 1,238,122.14 = 675,197.31 : x - Step 2: Convert to fraction form
821,675.74/1,238,122.14 = 675,197.31/x - Step 3: Cross multiply
821,675.74x = 1,238,122.14 × 675,197.31 - Step 4: Simplify right side
821,675.74x = 835,976,735,003.46 - Step 5: Solve for x
x = 835,976,735,003.46/821,675.74 - Step 6: Final answer
x = 1,017,404.68
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.