Finding the Fourth Proportional to 713,992.17, 1,069,530.26 and 398,617.05
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Solution
The fourth proportional to 713,992.17, 1,069,530.26 and 398,617.05 is: 597,111.58
Step by Step Solution
- Step 1: Write the proportion equation
713,992.17 : 1,069,530.26 = 398,617.05 : x - Step 2: Convert to fraction form
713,992.17/1,069,530.26 = 398,617.05/x - Step 3: Cross multiply
713,992.17x = 1,069,530.26 × 398,617.05 - Step 4: Simplify right side
713,992.17x = 426,332,995,133.85 - Step 5: Solve for x
x = 426,332,995,133.85/713,992.17 - Step 6: Final answer
x = 597,111.58
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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.