Finding the Fourth Proportional to 1,154,790.86, 1,593,472.28 and 638,474.99
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Solution
The fourth proportional to 1,154,790.86, 1,593,472.28 and 638,474.99 is: 881,018.57
Step by Step Solution
- Step 1: Write the proportion equation
1,154,790.86 : 1,593,472.28 = 638,474.99 : x - Step 2: Convert to fraction form
1,154,790.86/1,593,472.28 = 638,474.99/x - Step 3: Cross multiply
1,154,790.86x = 1,593,472.28 × 638,474.99 - Step 4: Simplify right side
1,154,790.86x = 1,017,392,186,878.54 - Step 5: Solve for x
x = 1,017,392,186,878.54/1,154,790.86 - Step 6: Final answer
x = 881,018.57
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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.