Finding the Fourth Proportional to 767,855.60, 1,151,772.60 and 347,130.80
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Solution
The fourth proportional to 767,855.60, 1,151,772.60 and 347,130.80 is: 520,691.32
Step by Step Solution
- Step 1: Write the proportion equation
767,855.60 : 1,151,772.60 = 347,130.80 : x - Step 2: Convert to fraction form
767,855.60/1,151,772.60 = 347,130.80/x - Step 3: Cross multiply
767,855.60x = 1,151,772.60 × 347,130.80 - Step 4: Simplify right side
767,855.60x = 399,815,744,056.08 - Step 5: Solve for x
x = 399,815,744,056.08/767,855.60 - Step 6: Final answer
x = 520,691.32
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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.