Finding the Fourth Proportional to 910,655.82, 1,257,130.26 and 528,609.06
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Solution
The fourth proportional to 910,655.82, 1,257,130.26 and 528,609.06 is: 729,727.34
Step by Step Solution
- Step 1: Write the proportion equation
910,655.82 : 1,257,130.26 = 528,609.06 : x - Step 2: Convert to fraction form
910,655.82/1,257,130.26 = 528,609.06/x - Step 3: Cross multiply
910,655.82x = 1,257,130.26 × 528,609.06 - Step 4: Simplify right side
910,655.82x = 664,530,445,036.16 - Step 5: Solve for x
x = 664,530,445,036.16/910,655.82 - Step 6: Final answer
x = 729,727.34
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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.