Finding the Fourth Proportional to 1,185,136.20, 1,635,482.70 and 641,281.62
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Solution
The fourth proportional to 1,185,136.20, 1,635,482.70 and 641,281.62 is: 884,965.79
Step by Step Solution
- Step 1: Write the proportion equation
1,185,136.20 : 1,635,482.70 = 641,281.62 : x - Step 2: Convert to fraction form
1,185,136.20/1,635,482.70 = 641,281.62/x - Step 3: Cross multiply
1,185,136.20x = 1,635,482.70 × 641,281.62 - Step 4: Simplify right side
1,185,136.20x = 1,048,804,995,337.97 - Step 5: Solve for x
x = 1,048,804,995,337.97/1,185,136.20 - Step 6: Final answer
x = 884,965.79
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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.