Finding the Fourth Proportional to 730,402.36, 1,007,953.14 and 408,112.70
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Solution
The fourth proportional to 730,402.36, 1,007,953.14 and 408,112.70 is: 563,194.35
Step by Step Solution
- Step 1: Write the proportion equation
730,402.36 : 1,007,953.14 = 408,112.70 : x - Step 2: Convert to fraction form
730,402.36/1,007,953.14 = 408,112.70/x - Step 3: Cross multiply
730,402.36x = 1,007,953.14 × 408,112.70 - Step 4: Simplify right side
730,402.36x = 411,358,481,286.32 - Step 5: Solve for x
x = 411,358,481,286.32/730,402.36 - Step 6: Final answer
x = 563,194.35
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1.5x scale
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.