Finding the Fourth Proportional to 613,993.68, 920,945.76 and 193,389.84
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Solution
The fourth proportional to 613,993.68, 920,945.76 and 193,389.84 is: 290,070.66
Step by Step Solution
- Step 1: Write the proportion equation
613,993.68 : 920,945.76 = 193,389.84 : x - Step 2: Convert to fraction form
613,993.68/920,945.76 = 193,389.84/x - Step 3: Cross multiply
613,993.68x = 920,945.76 × 193,389.84 - Step 4: Simplify right side
613,993.68x = 178,101,553,175.08 - Step 5: Solve for x
x = 178,101,553,175.08/613,993.68 - Step 6: Final answer
x = 290,070.66
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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.