Finding the Fourth Proportional to 972,918.21, 1,452,989.63 and 829,232.31
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Solution
The fourth proportional to 972,918.21, 1,452,989.63 and 829,232.31 is: 1,238,404.15
Step by Step Solution
- Step 1: Write the proportion equation
972,918.21 : 1,452,989.63 = 829,232.31 : x - Step 2: Convert to fraction form
972,918.21/1,452,989.63 = 829,232.31/x - Step 3: Cross multiply
972,918.21x = 1,452,989.63 × 829,232.31 - Step 4: Simplify right side
972,918.21x = 1,204,865,947,290.95 - Step 5: Solve for x
x = 1,204,865,947,290.95/972,918.21 - Step 6: Final answer
x = 1,238,404.15
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.