Finding the Fourth Proportional to 1,135,266.42, 1,565,039.79 and 893,128.47
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Solution
The fourth proportional to 1,135,266.42, 1,565,039.79 and 893,128.47 is: 1,231,236.62
Step by Step Solution
- Step 1: Write the proportion equation
1,135,266.42 : 1,565,039.79 = 893,128.47 : x - Step 2: Convert to fraction form
1,135,266.42/1,565,039.79 = 893,128.47/x - Step 3: Cross multiply
1,135,266.42x = 1,565,039.79 × 893,128.47 - Step 4: Simplify right side
1,135,266.42x = 1,397,781,593,131.82 - Step 5: Solve for x
x = 1,397,781,593,131.82/1,135,266.42 - Step 6: Final answer
x = 1,231,236.62
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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.