Finding the Fourth Proportional to 1,148,672.09, 1,723,213.35 and 390,473.73
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Solution
The fourth proportional to 1,148,672.09, 1,723,213.35 and 390,473.73 is: 585,780.35
Step by Step Solution
- Step 1: Write the proportion equation
1,148,672.09 : 1,723,213.35 = 390,473.73 : x - Step 2: Convert to fraction form
1,148,672.09/1,723,213.35 = 390,473.73/x - Step 3: Cross multiply
1,148,672.09x = 1,723,213.35 × 390,473.73 - Step 4: Simplify right side
1,148,672.09x = 672,869,544,360.30 - Step 5: Solve for x
x = 672,869,544,360.30/1,148,672.09 - Step 6: Final answer
x = 585,780.35
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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.