Finding the Fourth Proportional to 1,056,643.76, 1,457,072.34 and 904,186.64
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Solution
The fourth proportional to 1,056,643.76, 1,457,072.34 and 904,186.64 is: 1,246,839.66
Step by Step Solution
- Step 1: Write the proportion equation
1,056,643.76 : 1,457,072.34 = 904,186.64 : x - Step 2: Convert to fraction form
1,056,643.76/1,457,072.34 = 904,186.64/x - Step 3: Cross multiply
1,056,643.76x = 1,457,072.34 × 904,186.64 - Step 4: Simplify right side
1,056,643.76x = 1,317,465,343,341.54 - Step 5: Solve for x
x = 1,317,465,343,341.54/1,056,643.76 - Step 6: Final answer
x = 1,246,839.66
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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.