Finding the Fourth Proportional to 436,253.61, 654,394.99 and 120,684.09
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Solution
The fourth proportional to 436,253.61, 654,394.99 and 120,684.09 is: 181,030.16
Step by Step Solution
- Step 1: Write the proportion equation
436,253.61 : 654,394.99 = 120,684.09 : x - Step 2: Convert to fraction form
436,253.61/654,394.99 = 120,684.09/x - Step 3: Cross multiply
436,253.61x = 654,394.99 × 120,684.09 - Step 4: Simplify right side
436,253.61x = 78,975,061,565.58 - Step 5: Solve for x
x = 78,975,061,565.58/436,253.61 - Step 6: Final answer
x = 181,030.16
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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.