Finding the Fourth Proportional to 1,289,007.26, 1,778,842.19 and 708,242.58
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Solution
The fourth proportional to 1,289,007.26, 1,778,842.19 and 708,242.58 is: 977,381.44
Step by Step Solution
- Step 1: Write the proportion equation
1,289,007.26 : 1,778,842.19 = 708,242.58 : x - Step 2: Convert to fraction form
1,289,007.26/1,778,842.19 = 708,242.58/x - Step 3: Cross multiply
1,289,007.26x = 1,778,842.19 × 708,242.58 - Step 4: Simplify right side
1,289,007.26x = 1,259,851,778,517.24 - Step 5: Solve for x
x = 1,259,851,778,517.24/1,289,007.26 - Step 6: Final answer
x = 977,381.44
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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.