Finding the Fourth Proportional to 904,899.68, 1,355,282.29 and 431,917.19
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Solution
The fourth proportional to 904,899.68, 1,355,282.29 and 431,917.19 is: 646,889.08
Step by Step Solution
- Step 1: Write the proportion equation
904,899.68 : 1,355,282.29 = 431,917.19 : x - Step 2: Convert to fraction form
904,899.68/1,355,282.29 = 431,917.19/x - Step 3: Cross multiply
904,899.68x = 1,355,282.29 × 431,917.19 - Step 4: Simplify right side
904,899.68x = 585,369,720,661.98 - Step 5: Solve for x
x = 585,369,720,661.98/904,899.68 - Step 6: Final answer
x = 646,889.08
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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.