Finding the Fourth Proportional to 768,869.55, 1,153,304.33 and 319,441.05
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Solution
The fourth proportional to 768,869.55, 1,153,304.33 and 319,441.05 is: 479,161.58
Step by Step Solution
- Step 1: Write the proportion equation
768,869.55 : 1,153,304.33 = 319,441.05 : x - Step 2: Convert to fraction form
768,869.55/1,153,304.33 = 319,441.05/x - Step 3: Cross multiply
768,869.55x = 1,153,304.33 × 319,441.05 - Step 4: Simplify right side
768,869.55x = 368,412,744,547.54 - Step 5: Solve for x
x = 368,412,744,547.54/768,869.55 - Step 6: Final answer
x = 479,161.58
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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.