Finding the Fourth Proportional to 778,741.70, 1,169,108.84 and 661,160.07
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Solution
The fourth proportional to 778,741.70, 1,169,108.84 and 661,160.07 is: 992,585.97
Step by Step Solution
- Step 1: Write the proportion equation
778,741.70 : 1,169,108.84 = 661,160.07 : x - Step 2: Convert to fraction form
778,741.70/1,169,108.84 = 661,160.07/x - Step 3: Cross multiply
778,741.70x = 1,169,108.84 × 661,160.07 - Step 4: Simplify right side
778,741.70x = 772,968,084,144.92 - Step 5: Solve for x
x = 772,968,084,144.92/778,741.70 - Step 6: Final answer
x = 992,585.97
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.