Finding the Fourth Proportional to 936,552.09, 1,291,564.79 and 621,667.07
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Solution
The fourth proportional to 936,552.09, 1,291,564.79 and 621,667.07 is: 857,318.35
Step by Step Solution
- Step 1: Write the proportion equation
936,552.09 : 1,291,564.79 = 621,667.07 : x - Step 2: Convert to fraction form
936,552.09/1,291,564.79 = 621,667.07/x - Step 3: Cross multiply
936,552.09x = 1,291,564.79 × 621,667.07 - Step 4: Simplify right side
936,552.09x = 802,923,296,322.93 - Step 5: Solve for x
x = 802,923,296,322.93/936,552.09 - Step 6: Final answer
x = 857,318.35
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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.