Finding the Fourth Proportional to 612,427.88, 845,178.62 and 340,523.68
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Solution
The fourth proportional to 612,427.88, 845,178.62 and 340,523.68 is: 469,938.33
Step by Step Solution
- Step 1: Write the proportion equation
612,427.88 : 845,178.62 = 340,523.68 : x - Step 2: Convert to fraction form
612,427.88/845,178.62 = 340,523.68/x - Step 3: Cross multiply
612,427.88x = 845,178.62 × 340,523.68 - Step 4: Simplify right side
612,427.88x = 287,803,333,939.72 - Step 5: Solve for x
x = 287,803,333,939.72/612,427.88 - Step 6: Final answer
x = 469,938.33
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1.5x scale
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.