Finding the Fourth Proportional to 977,205.54, 1,465,769.97 and 408,439.74
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Solution
The fourth proportional to 977,205.54, 1,465,769.97 and 408,439.74 is: 612,643.59
Step by Step Solution
- Step 1: Write the proportion equation
977,205.54 : 1,465,769.97 = 408,439.74 : x - Step 2: Convert to fraction form
977,205.54/1,465,769.97 = 408,439.74/x - Step 3: Cross multiply
977,205.54x = 1,465,769.97 × 408,439.74 - Step 4: Simplify right side
977,205.54x = 598,678,705,446.61 - Step 5: Solve for x
x = 598,678,705,446.61/977,205.54 - Step 6: Final answer
x = 612,643.59
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.