Finding the Fourth Proportional to 523,927.80, 785,891.70 and 129,943.80
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Solution
The fourth proportional to 523,927.80, 785,891.70 and 129,943.80 is: 194,915.70
Step by Step Solution
- Step 1: Write the proportion equation
523,927.80 : 785,891.70 = 129,943.80 : x - Step 2: Convert to fraction form
523,927.80/785,891.70 = 129,943.80/x - Step 3: Cross multiply
523,927.80x = 785,891.70 × 129,943.80 - Step 4: Simplify right side
523,927.80x = 102,121,753,886.46 - Step 5: Solve for x
x = 102,121,753,886.46/523,927.80 - Step 6: Final answer
x = 194,915.70
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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.