Finding the Fourth Proportional to 859,683.62, 1,186,472.49 and 520,154.66
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Solution
The fourth proportional to 859,683.62, 1,186,472.49 and 520,154.66 is: 717,879.44
Step by Step Solution
- Step 1: Write the proportion equation
859,683.62 : 1,186,472.49 = 520,154.66 : x - Step 2: Convert to fraction form
859,683.62/1,186,472.49 = 520,154.66/x - Step 3: Cross multiply
859,683.62x = 1,186,472.49 × 520,154.66 - Step 4: Simplify right side
859,683.62x = 617,149,194,635.30 - Step 5: Solve for x
x = 617,149,194,635.30/859,683.62 - Step 6: Final answer
x = 717,879.44
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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.