Finding the Fourth Proportional to 781,305.30, 1,177,813.94 and 729,225.14
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Solution
The fourth proportional to 781,305.30, 1,177,813.94 and 729,225.14 is: 1,099,303.34
Step by Step Solution
- Step 1: Write the proportion equation
781,305.30 : 1,177,813.94 = 729,225.14 : x - Step 2: Convert to fraction form
781,305.30/1,177,813.94 = 729,225.14/x - Step 3: Cross multiply
781,305.30x = 1,177,813.94 × 729,225.14 - Step 4: Simplify right side
781,305.30x = 858,891,525,755.26 - Step 5: Solve for x
x = 858,891,525,755.26/781,305.30 - Step 6: Final answer
x = 1,099,303.34
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.