Finding the Fourth Proportional to 668,713.80, 922,817.34 and 366,907.80
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Solution
The fourth proportional to 668,713.80, 922,817.34 and 366,907.80 is: 506,328.54
Step by Step Solution
- Step 1: Write the proportion equation
668,713.80 : 922,817.34 = 366,907.80 : x - Step 2: Convert to fraction form
668,713.80/922,817.34 = 366,907.80/x - Step 3: Cross multiply
668,713.80x = 922,817.34 × 366,907.80 - Step 4: Simplify right side
668,713.80x = 338,588,880,021.25 - Step 5: Solve for x
x = 338,588,880,021.25/668,713.80 - Step 6: Final answer
x = 506,328.54
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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.