Finding the Fourth Proportional to 718,415.23, 1,077,552.87 and 291,976.62
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Solution
The fourth proportional to 718,415.23, 1,077,552.87 and 291,976.62 is: 437,936.49
Step by Step Solution
- Step 1: Write the proportion equation
718,415.23 : 1,077,552.87 = 291,976.62 : x - Step 2: Convert to fraction form
718,415.23/1,077,552.87 = 291,976.62/x - Step 3: Cross multiply
718,415.23x = 1,077,552.87 × 291,976.62 - Step 4: Simplify right side
718,415.23x = 314,620,244,853.90 - Step 5: Solve for x
x = 314,620,244,853.90/718,415.23 - Step 6: Final answer
x = 437,936.49
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1.5x scale
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.