Finding the Fourth Proportional to 913,986.18, 1,371,259.53 and 408,972.24
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Solution
The fourth proportional to 913,986.18, 1,371,259.53 and 408,972.24 is: 613,583.77
Step by Step Solution
- Step 1: Write the proportion equation
913,986.18 : 1,371,259.53 = 408,972.24 : x - Step 2: Convert to fraction form
913,986.18/1,371,259.53 = 408,972.24/x - Step 3: Cross multiply
913,986.18x = 1,371,259.53 × 408,972.24 - Step 4: Simplify right side
913,986.18x = 560,807,081,605.45 - Step 5: Solve for x
x = 560,807,081,605.45/913,986.18 - Step 6: Final answer
x = 613,583.77
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1.5x scale
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.