Finding the Fourth Proportional to 516,721.36, 713,141.04 and 290,366.68
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Solution
The fourth proportional to 516,721.36, 713,141.04 and 290,366.68 is: 400,742.86
Step by Step Solution
- Step 1: Write the proportion equation
516,721.36 : 713,141.04 = 290,366.68 : x - Step 2: Convert to fraction form
516,721.36/713,141.04 = 290,366.68/x - Step 3: Cross multiply
516,721.36x = 713,141.04 × 290,366.68 - Step 4: Simplify right side
516,721.36x = 207,072,396,156.55 - Step 5: Solve for x
x = 207,072,396,156.55/516,721.36 - Step 6: Final answer
x = 400,742.86
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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.