Finding the Fourth Proportional to 759,312.62, 1,047,806.42 and 419,760.62
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Solution
The fourth proportional to 759,312.62, 1,047,806.42 and 419,760.62 is: 579,244.78
Step by Step Solution
- Step 1: Write the proportion equation
759,312.62 : 1,047,806.42 = 419,760.62 : x - Step 2: Convert to fraction form
759,312.62/1,047,806.42 = 419,760.62/x - Step 3: Cross multiply
759,312.62x = 1,047,806.42 × 419,760.62 - Step 4: Simplify right side
759,312.62x = 439,827,872,499.18 - Step 5: Solve for x
x = 439,827,872,499.18/759,312.62 - Step 6: Final answer
x = 579,244.78
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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.