Finding the Fourth Proportional to 506,781.32, 759,371.76 and 411,548.09
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Solution
The fourth proportional to 506,781.32, 759,371.76 and 411,548.09 is: 616,672.29
Step by Step Solution
- Step 1: Write the proportion equation
506,781.32 : 759,371.76 = 411,548.09 : x - Step 2: Convert to fraction form
506,781.32/759,371.76 = 411,548.09/x - Step 3: Cross multiply
506,781.32x = 759,371.76 × 411,548.09 - Step 4: Simplify right side
506,781.32x = 312,517,993,631.08 - Step 5: Solve for x
x = 312,517,993,631.08/506,781.32 - Step 6: Final answer
x = 616,672.29
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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.