Finding the Fourth Proportional to 510,785.68, 704,916.08 and 281,342.92
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Solution
The fourth proportional to 510,785.68, 704,916.08 and 281,342.92 is: 388,270.77
Step by Step Solution
- Step 1: Write the proportion equation
510,785.68 : 704,916.08 = 281,342.92 : x - Step 2: Convert to fraction form
510,785.68/704,916.08 = 281,342.92/x - Step 3: Cross multiply
510,785.68x = 704,916.08 × 281,342.92 - Step 4: Simplify right side
510,785.68x = 198,323,148,302.15 - Step 5: Solve for x
x = 198,323,148,302.15/510,785.68 - Step 6: Final answer
x = 388,270.77
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1.5x scale
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.