Finding the Fourth Proportional to 390,874.06, 586,343.97 and 124,672.42
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Solution
The fourth proportional to 390,874.06, 586,343.97 and 124,672.42 is: 187,019.12
Step by Step Solution
- Step 1: Write the proportion equation
390,874.06 : 586,343.97 = 124,672.42 : x - Step 2: Convert to fraction form
390,874.06/586,343.97 = 124,672.42/x - Step 3: Cross multiply
390,874.06x = 586,343.97 × 124,672.42 - Step 4: Simplify right side
390,874.06x = 73,100,921,692.31 - Step 5: Solve for x
x = 73,100,921,692.31/390,874.06 - Step 6: Final answer
x = 187,019.12
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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.