Finding the Fourth Proportional to 1,420,696.86, 1,960,529.58 and 776,119.92
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Solution
The fourth proportional to 1,420,696.86, 1,960,529.58 and 776,119.92 is: 1,071,027.96
Step by Step Solution
- Step 1: Write the proportion equation
1,420,696.86 : 1,960,529.58 = 776,119.92 : x - Step 2: Convert to fraction form
1,420,696.86/1,960,529.58 = 776,119.92/x - Step 3: Cross multiply
1,420,696.86x = 1,960,529.58 × 776,119.92 - Step 4: Simplify right side
1,420,696.86x = 1,521,606,060,787.23 - Step 5: Solve for x
x = 1,521,606,060,787.23/1,420,696.86 - Step 6: Final answer
x = 1,071,027.96
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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.