Finding the Fourth Proportional to 1,297,542.54, 1,790,573.99 and 716,753.17
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Solution
The fourth proportional to 1,297,542.54, 1,790,573.99 and 716,753.17 is: 989,100.20
Step by Step Solution
- Step 1: Write the proportion equation
1,297,542.54 : 1,790,573.99 = 716,753.17 : x - Step 2: Convert to fraction form
1,297,542.54/1,790,573.99 = 716,753.17/x - Step 3: Cross multiply
1,297,542.54x = 1,790,573.99 × 716,753.17 - Step 4: Simplify right side
1,297,542.54x = 1,283,399,578,588.40 - Step 5: Solve for x
x = 1,283,399,578,588.40/1,297,542.54 - Step 6: Final answer
x = 989,100.20
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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.