Finding the Fourth Proportional to 817,414.68, 1,226,122.70 and 390,850.14
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Solution
The fourth proportional to 817,414.68, 1,226,122.70 and 390,850.14 is: 586,275.53
Step by Step Solution
- Step 1: Write the proportion equation
817,414.68 : 1,226,122.70 = 390,850.14 : x - Step 2: Convert to fraction form
817,414.68/1,226,122.70 = 390,850.14/x - Step 3: Cross multiply
817,414.68x = 1,226,122.70 × 390,850.14 - Step 4: Simplify right side
817,414.68x = 479,230,226,997.93 - Step 5: Solve for x
x = 479,230,226,997.93/817,414.68 - Step 6: Final answer
x = 586,275.53
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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.