Finding the Fourth Proportional to 664,713.13, 996,860.55 and 215,329.74
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Solution
The fourth proportional to 664,713.13, 996,860.55 and 215,329.74 is: 322,926.86
Step by Step Solution
- Step 1: Write the proportion equation
664,713.13 : 996,860.55 = 215,329.74 : x - Step 2: Convert to fraction form
664,713.13/996,860.55 = 215,329.74/x - Step 3: Cross multiply
664,713.13x = 996,860.55 × 215,329.74 - Step 4: Simplify right side
664,713.13x = 214,653,723,047.76 - Step 5: Solve for x
x = 214,653,723,047.76/664,713.13 - Step 6: Final answer
x = 322,926.86
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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.