Finding the Fourth Proportional to 782,788.94, 1,080,252.88 and 438,625.60
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Solution
The fourth proportional to 782,788.94, 1,080,252.88 and 438,625.60 is: 605,305.65
Step by Step Solution
- Step 1: Write the proportion equation
782,788.94 : 1,080,252.88 = 438,625.60 : x - Step 2: Convert to fraction form
782,788.94/1,080,252.88 = 438,625.60/x - Step 3: Cross multiply
782,788.94x = 1,080,252.88 × 438,625.60 - Step 4: Simplify right side
782,788.94x = 473,826,567,641.73 - Step 5: Solve for x
x = 473,826,567,641.73/782,788.94 - Step 6: Final answer
x = 605,305.65
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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.