Finding the Fourth Proportional to 847,403.19, 1,270,991.66 and 314,851.95
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Solution
The fourth proportional to 847,403.19, 1,270,991.66 and 314,851.95 is: 472,235.89
Step by Step Solution
- Step 1: Write the proportion equation
847,403.19 : 1,270,991.66 = 314,851.95 : x - Step 2: Convert to fraction form
847,403.19/1,270,991.66 = 314,851.95/x - Step 3: Cross multiply
847,403.19x = 1,270,991.66 × 314,851.95 - Step 4: Simplify right side
847,403.19x = 400,174,201,010.48 - Step 5: Solve for x
x = 400,174,201,010.48/847,403.19 - Step 6: Final answer
x = 472,235.89
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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.