Finding the Fourth Proportional to 1,284,564.93, 1,772,699.63 and 711,642.21
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Solution
The fourth proportional to 1,284,564.93, 1,772,699.63 and 711,642.21 is: 982,066.26
Step by Step Solution
- Step 1: Write the proportion equation
1,284,564.93 : 1,772,699.63 = 711,642.21 : x - Step 2: Convert to fraction form
1,284,564.93/1,772,699.63 = 711,642.21/x - Step 3: Cross multiply
1,284,564.93x = 1,772,699.63 × 711,642.21 - Step 4: Simplify right side
1,284,564.93x = 1,261,527,878,801.17 - Step 5: Solve for x
x = 1,261,527,878,801.17/1,284,564.93 - Step 6: Final answer
x = 982,066.26
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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.