Finding the Fourth Proportional to 725,616.47, 1,001,351.36 and 398,935.02
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Solution
The fourth proportional to 725,616.47, 1,001,351.36 and 398,935.02 is: 550,530.68
Step by Step Solution
- Step 1: Write the proportion equation
725,616.47 : 1,001,351.36 = 398,935.02 : x - Step 2: Convert to fraction form
725,616.47/1,001,351.36 = 398,935.02/x - Step 3: Cross multiply
725,616.47x = 1,001,351.36 × 398,935.02 - Step 4: Simplify right side
725,616.47x = 399,474,122,833.95 - Step 5: Solve for x
x = 399,474,122,833.95/725,616.47 - Step 6: Final answer
x = 550,530.68
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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.