Finding the Fourth Proportional to 853,785.08, 1,178,290.43 and 486,277.82
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Solution
The fourth proportional to 853,785.08, 1,178,290.43 and 486,277.82 is: 671,101.56
Step by Step Solution
- Step 1: Write the proportion equation
853,785.08 : 1,178,290.43 = 486,277.82 : x - Step 2: Convert to fraction form
853,785.08/1,178,290.43 = 486,277.82/x - Step 3: Cross multiply
853,785.08x = 1,178,290.43 × 486,277.82 - Step 4: Simplify right side
853,785.08x = 572,976,501,627.26 - Step 5: Solve for x
x = 572,976,501,627.26/853,785.08 - Step 6: Final answer
x = 671,101.56
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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.