Finding the Fourth Proportional to 1,154,704.20, 1,593,427.50 and 638,428.26
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Solution
The fourth proportional to 1,154,704.20, 1,593,427.50 and 638,428.26 is: 880,995.45
Step by Step Solution
- Step 1: Write the proportion equation
1,154,704.20 : 1,593,427.50 = 638,428.26 : x - Step 2: Convert to fraction form
1,154,704.20/1,593,427.50 = 638,428.26/x - Step 3: Cross multiply
1,154,704.20x = 1,593,427.50 × 638,428.26 - Step 4: Simplify right side
1,154,704.20x = 1,017,289,146,261.15 - Step 5: Solve for x
x = 1,017,289,146,261.15/1,154,704.20 - Step 6: Final answer
x = 880,995.45
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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.