Finding the Fourth Proportional to 390,744.06, 586,158.84 and 124,441.98
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Solution
The fourth proportional to 390,744.06, 586,158.84 and 124,441.98 is: 186,676.58
Step by Step Solution
- Step 1: Write the proportion equation
390,744.06 : 586,158.84 = 124,441.98 : x - Step 2: Convert to fraction form
390,744.06/586,158.84 = 124,441.98/x - Step 3: Cross multiply
390,744.06x = 586,158.84 × 124,441.98 - Step 4: Simplify right side
390,744.06x = 72,942,766,644.10 - Step 5: Solve for x
x = 72,942,766,644.10/390,744.06 - Step 6: Final answer
x = 186,676.58
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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.