Finding the Fourth Proportional to 719,231.68, 992,464.68 and 396,935.92
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Solution
The fourth proportional to 719,231.68, 992,464.68 and 396,935.92 is: 547,730.16
Step by Step Solution
- Step 1: Write the proportion equation
719,231.68 : 992,464.68 = 396,935.92 : x - Step 2: Convert to fraction form
719,231.68/992,464.68 = 396,935.92/x - Step 3: Cross multiply
719,231.68x = 992,464.68 × 396,935.92 - Step 4: Simplify right side
719,231.68x = 393,944,880,823.31 - Step 5: Solve for x
x = 393,944,880,823.31/719,231.68 - Step 6: Final answer
x = 547,730.16
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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.