Finding the Fourth Proportional to 853,454.61, 1,177,801.29 and 490,878.09
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Solution
The fourth proportional to 853,454.61, 1,177,801.29 and 490,878.09 is: 677,431.28
Step by Step Solution
- Step 1: Write the proportion equation
853,454.61 : 1,177,801.29 = 490,878.09 : x - Step 2: Convert to fraction form
853,454.61/1,177,801.29 = 490,878.09/x - Step 3: Cross multiply
853,454.61x = 1,177,801.29 × 490,878.09 - Step 4: Simplify right side
853,454.61x = 578,156,847,634.74 - Step 5: Solve for x
x = 578,156,847,634.74/853,454.61 - Step 6: Final answer
x = 677,431.28
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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.