Finding the Fourth Proportional to 612,474.08, 845,209.80 and 340,539.87
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Solution
The fourth proportional to 612,474.08, 845,209.80 and 340,539.87 is: 469,942.56
Step by Step Solution
- Step 1: Write the proportion equation
612,474.08 : 845,209.80 = 340,539.87 : x - Step 2: Convert to fraction form
612,474.08/845,209.80 = 340,539.87/x - Step 3: Cross multiply
612,474.08x = 845,209.80 × 340,539.87 - Step 4: Simplify right side
612,474.08x = 287,827,635,414.73 - Step 5: Solve for x
x = 287,827,635,414.73/612,474.08 - Step 6: Final answer
x = 469,942.56
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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.