Finding the Fourth Proportional to 769,915.52, 1,062,487.68 and 430,398.08
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Solution
The fourth proportional to 769,915.52, 1,062,487.68 and 430,398.08 is: 593,951.73
Step by Step Solution
- Step 1: Write the proportion equation
769,915.52 : 1,062,487.68 = 430,398.08 : x - Step 2: Convert to fraction form
769,915.52/1,062,487.68 = 430,398.08/x - Step 3: Cross multiply
769,915.52x = 1,062,487.68 × 430,398.08 - Step 4: Simplify right side
769,915.52x = 457,292,657,495.65 - Step 5: Solve for x
x = 457,292,657,495.65/769,915.52 - Step 6: Final answer
x = 593,951.73
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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.