Finding the Fourth Proportional to 1,238,542.36, 1,709,051.79 and 694,566.20
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Solution
The fourth proportional to 1,238,542.36, 1,709,051.79 and 694,566.20 is: 958,424.72
Step by Step Solution
- Step 1: Write the proportion equation
1,238,542.36 : 1,709,051.79 = 694,566.20 : x - Step 2: Convert to fraction form
1,238,542.36/1,709,051.79 = 694,566.20/x - Step 3: Cross multiply
1,238,542.36x = 1,709,051.79 × 694,566.20 - Step 4: Simplify right side
1,238,542.36x = 1,187,049,611,656.13 - Step 5: Solve for x
x = 1,187,049,611,656.13/1,238,542.36 - Step 6: Final answer
x = 958,424.72
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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.