Finding the Fourth Proportional to 1,129,395.42, 1,558,592.82 and 613,171.08
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Solution
The fourth proportional to 1,129,395.42, 1,558,592.82 and 613,171.08 is: 846,190.83
Step by Step Solution
- Step 1: Write the proportion equation
1,129,395.42 : 1,558,592.82 = 613,171.08 : x - Step 2: Convert to fraction form
1,129,395.42/1,558,592.82 = 613,171.08/x - Step 3: Cross multiply
1,129,395.42x = 1,558,592.82 × 613,171.08 - Step 4: Simplify right side
1,129,395.42x = 955,684,042,719.65 - Step 5: Solve for x
x = 955,684,042,719.65/1,129,395.42 - Step 6: Final answer
x = 846,190.83
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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.