Finding the Fourth Proportional to 1,138,968.75, 1,571,809.68 and 629,703.93
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Solution
The fourth proportional to 1,138,968.75, 1,571,809.68 and 629,703.93 is: 869,009.56
Step by Step Solution
- Step 1: Write the proportion equation
1,138,968.75 : 1,571,809.68 = 629,703.93 : x - Step 2: Convert to fraction form
1,138,968.75/1,571,809.68 = 629,703.93/x - Step 3: Cross multiply
1,138,968.75x = 1,571,809.68 × 629,703.93 - Step 4: Simplify right side
1,138,968.75x = 989,774,732,708.04 - Step 5: Solve for x
x = 989,774,732,708.04/1,138,968.75 - Step 6: Final answer
x = 869,009.56
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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.