Finding the Fourth Proportional to 987,625.80, 1,481,438.70 and 655,201.80
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Solution
The fourth proportional to 987,625.80, 1,481,438.70 and 655,201.80 is: 982,802.70
Step by Step Solution
- Step 1: Write the proportion equation
987,625.80 : 1,481,438.70 = 655,201.80 : x - Step 2: Convert to fraction form
987,625.80/1,481,438.70 = 655,201.80/x - Step 3: Cross multiply
987,625.80x = 1,481,438.70 × 655,201.80 - Step 4: Simplify right side
987,625.80x = 970,641,302,829.66 - Step 5: Solve for x
x = 970,641,302,829.66/987,625.80 - Step 6: Final answer
x = 982,802.70
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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.