Finding the Fourth Proportional to 1,190,394.74, 1,642,489.16 and 707,122.82
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Solution
The fourth proportional to 1,190,394.74, 1,642,489.16 and 707,122.82 is: 975,677.67
Step by Step Solution
- Step 1: Write the proportion equation
1,190,394.74 : 1,642,489.16 = 707,122.82 : x - Step 2: Convert to fraction form
1,190,394.74/1,642,489.16 = 707,122.82/x - Step 3: Cross multiply
1,190,394.74x = 1,642,489.16 × 707,122.82 - Step 4: Simplify right side
1,190,394.74x = 1,161,441,566,638.63 - Step 5: Solve for x
x = 1,161,441,566,638.63/1,190,394.74 - Step 6: Final answer
x = 975,677.67
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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.