Finding the Fourth Proportional to 1,185,118.70, 1,635,451.99 and 641,242.55
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Solution
The fourth proportional to 1,185,118.70, 1,635,451.99 and 641,242.55 is: 884,908.33
Step by Step Solution
- Step 1: Write the proportion equation
1,185,118.70 : 1,635,451.99 = 641,242.55 : x - Step 2: Convert to fraction form
1,185,118.70/1,635,451.99 = 641,242.55/x - Step 3: Cross multiply
1,185,118.70x = 1,635,451.99 × 641,242.55 - Step 4: Simplify right side
1,185,118.70x = 1,048,721,404,159.48 - Step 5: Solve for x
x = 1,048,721,404,159.48/1,185,118.70 - Step 6: Final answer
x = 884,908.33
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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.