Finding the Fourth Proportional to 868,123.10, 1,302,573.45 and 394,564.70
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Solution
The fourth proportional to 868,123.10, 1,302,573.45 and 394,564.70 is: 592,023.76
Step by Step Solution
- Step 1: Write the proportion equation
868,123.10 : 1,302,573.45 = 394,564.70 : x - Step 2: Convert to fraction form
868,123.10/1,302,573.45 = 394,564.70/x - Step 3: Cross multiply
868,123.10x = 1,302,573.45 × 394,564.70 - Step 4: Simplify right side
868,123.10x = 513,949,502,527.22 - Step 5: Solve for x
x = 513,949,502,527.22/868,123.10 - Step 6: Final answer
x = 592,023.76
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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.