Finding the Fourth Proportional to 939,971.97, 1,292,173.53 and 808,669.98
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Solution
The fourth proportional to 939,971.97, 1,292,173.53 and 808,669.98 is: 1,111,673.51
Step by Step Solution
- Step 1: Write the proportion equation
939,971.97 : 1,292,173.53 = 808,669.98 : x - Step 2: Convert to fraction form
939,971.97/1,292,173.53 = 808,669.98/x - Step 3: Cross multiply
939,971.97x = 1,292,173.53 × 808,669.98 - Step 4: Simplify right side
939,971.97x = 1,044,941,942,661.63 - Step 5: Solve for x
x = 1,044,941,942,661.63/939,971.97 - Step 6: Final answer
x = 1,111,673.51
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.