Finding the Fourth Proportional to 686,447.10, 1,029,659.61 and 213,132.92
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Solution
The fourth proportional to 686,447.10, 1,029,659.61 and 213,132.92 is: 319,695.95
Step by Step Solution
- Step 1: Write the proportion equation
686,447.10 : 1,029,659.61 = 213,132.92 : x - Step 2: Convert to fraction form
686,447.10/1,029,659.61 = 213,132.92/x - Step 3: Cross multiply
686,447.10x = 1,029,659.61 × 213,132.92 - Step 4: Simplify right side
686,447.10x = 219,454,354,936.31 - Step 5: Solve for x
x = 219,454,354,936.31/686,447.10 - Step 6: Final answer
x = 319,695.95
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.