Finding the Fourth Proportional to 581,990.40, 873,641.70 and 449,458.20
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Solution
The fourth proportional to 581,990.40, 873,641.70 and 449,458.20 is: 674,693.99
Step by Step Solution
- Step 1: Write the proportion equation
581,990.40 : 873,641.70 = 449,458.20 : x - Step 2: Convert to fraction form
581,990.40/873,641.70 = 449,458.20/x - Step 3: Cross multiply
581,990.40x = 873,641.70 × 449,458.20 - Step 4: Simplify right side
581,990.40x = 392,665,425,926.94 - Step 5: Solve for x
x = 392,665,425,926.94/581,990.40 - Step 6: Final answer
x = 674,693.99
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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.