Finding the Fourth Proportional to 1,103,679.36, 1,523,493.75 and 644,943.06
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Solution
The fourth proportional to 1,103,679.36, 1,523,493.75 and 644,943.06 is: 890,264.65
Step by Step Solution
- Step 1: Write the proportion equation
1,103,679.36 : 1,523,493.75 = 644,943.06 : x - Step 2: Convert to fraction form
1,103,679.36/1,523,493.75 = 644,943.06/x - Step 3: Cross multiply
1,103,679.36x = 1,523,493.75 × 644,943.06 - Step 4: Simplify right side
1,103,679.36x = 982,566,721,015.88 - Step 5: Solve for x
x = 982,566,721,015.88/1,103,679.36 - Step 6: Final answer
x = 890,264.65
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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.