Finding the Fourth Proportional to 739,994.77, 1,109,797.74 and 319,177.09
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Solution
The fourth proportional to 739,994.77, 1,109,797.74 and 319,177.09 is: 478,681.78
Step by Step Solution
- Step 1: Write the proportion equation
739,994.77 : 1,109,797.74 = 319,177.09 : x - Step 2: Convert to fraction form
739,994.77/1,109,797.74 = 319,177.09/x - Step 3: Cross multiply
739,994.77x = 1,109,797.74 × 319,177.09 - Step 4: Simplify right side
739,994.77x = 354,222,013,141.78 - Step 5: Solve for x
x = 354,222,013,141.78/739,994.77 - Step 6: Final answer
x = 478,681.78
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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.