Finding the Fourth Proportional to 812,154.75, 1,120,283.23 and 521,668.53
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Solution
The fourth proportional to 812,154.75, 1,120,283.23 and 521,668.53 is: 719,587.62
Step by Step Solution
- Step 1: Write the proportion equation
812,154.75 : 1,120,283.23 = 521,668.53 : x - Step 2: Convert to fraction form
812,154.75/1,120,283.23 = 521,668.53/x - Step 3: Cross multiply
812,154.75x = 1,120,283.23 × 521,668.53 - Step 4: Simplify right side
812,154.75x = 584,416,503,768.11 - Step 5: Solve for x
x = 584,416,503,768.11/812,154.75 - Step 6: Final answer
x = 719,587.62
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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.