Finding the Fourth Proportional to 1,166,009.99, 1,609,027.39 and 642,616.74
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Solution
The fourth proportional to 1,166,009.99, 1,609,027.39 and 642,616.74 is: 886,774.51
Step by Step Solution
- Step 1: Write the proportion equation
1,166,009.99 : 1,609,027.39 = 642,616.74 : x - Step 2: Convert to fraction form
1,166,009.99/1,609,027.39 = 642,616.74/x - Step 3: Cross multiply
1,166,009.99x = 1,609,027.39 × 642,616.74 - Step 4: Simplify right side
1,166,009.99x = 1,033,987,933,121.06 - Step 5: Solve for x
x = 1,033,987,933,121.06/1,166,009.99 - Step 6: Final answer
x = 886,774.51
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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.