Finding the Fourth Proportional to 859,764.72, 1,186,381.10 and 497,133.70
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Solution
The fourth proportional to 859,764.72, 1,186,381.10 and 497,133.70 is: 685,990.03
Step by Step Solution
- Step 1: Write the proportion equation
859,764.72 : 1,186,381.10 = 497,133.70 : x - Step 2: Convert to fraction form
859,764.72/1,186,381.10 = 497,133.70/x - Step 3: Cross multiply
859,764.72x = 1,186,381.10 × 497,133.70 - Step 4: Simplify right side
859,764.72x = 589,790,025,853.07 - Step 5: Solve for x
x = 589,790,025,853.07/859,764.72 - Step 6: Final answer
x = 685,990.03
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.