Finding the Fourth Proportional to 668,744.80, 922,860.12 and 366,938.80
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Solution
The fourth proportional to 668,744.80, 922,860.12 and 366,938.80 is: 506,371.32
Step by Step Solution
- Step 1: Write the proportion equation
668,744.80 : 922,860.12 = 366,938.80 : x - Step 2: Convert to fraction form
668,744.80/922,860.12 = 366,938.80/x - Step 3: Cross multiply
668,744.80x = 922,860.12 × 366,938.80 - Step 4: Simplify right side
668,744.80x = 338,633,185,000.66 - Step 5: Solve for x
x = 338,633,185,000.66/668,744.80 - Step 6: Final answer
x = 506,371.32
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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.