Finding the Fourth Proportional to 605,316.91, 835,137.39 and 390,599.68
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Solution
The fourth proportional to 605,316.91, 835,137.39 and 390,599.68 is: 538,898.54
Step by Step Solution
- Step 1: Write the proportion equation
605,316.91 : 835,137.39 = 390,599.68 : x - Step 2: Convert to fraction form
605,316.91/835,137.39 = 390,599.68/x - Step 3: Cross multiply
605,316.91x = 835,137.39 × 390,599.68 - Step 4: Simplify right side
605,316.91x = 326,204,397,290.04 - Step 5: Solve for x
x = 326,204,397,290.04/605,316.91 - Step 6: Final answer
x = 538,898.54
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.