Finding the Fourth Proportional to 808,519.80, 1,212,779.70 and 493,591.80
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Solution
The fourth proportional to 808,519.80, 1,212,779.70 and 493,591.80 is: 740,387.70
Step by Step Solution
- Step 1: Write the proportion equation
808,519.80 : 1,212,779.70 = 493,591.80 : x - Step 2: Convert to fraction form
808,519.80/1,212,779.70 = 493,591.80/x - Step 3: Cross multiply
808,519.80x = 1,212,779.70 × 493,591.80 - Step 4: Simplify right side
808,519.80x = 598,618,115,126.46 - Step 5: Solve for x
x = 598,618,115,126.46/808,519.80 - Step 6: Final answer
x = 740,387.70
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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.