Finding the Fourth Proportional to 646,009.97, 891,293.09 and 366,561.32
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Solution
The fourth proportional to 646,009.97, 891,293.09 and 366,561.32 is: 505,740.75
Step by Step Solution
- Step 1: Write the proportion equation
646,009.97 : 891,293.09 = 366,561.32 : x - Step 2: Convert to fraction form
646,009.97/891,293.09 = 366,561.32/x - Step 3: Cross multiply
646,009.97x = 891,293.09 × 366,561.32 - Step 4: Simplify right side
646,009.97x = 326,713,565,288.01 - Step 5: Solve for x
x = 326,713,565,288.01/646,009.97 - Step 6: Final answer
x = 505,740.75
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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.