Finding the Fourth Proportional to 1,580,538.65, 2,181,146.00 and 855,387.09
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Solution
The fourth proportional to 1,580,538.65, 2,181,146.00 and 855,387.09 is: 1,180,435.63
Step by Step Solution
- Step 1: Write the proportion equation
1,580,538.65 : 2,181,146.00 = 855,387.09 : x - Step 2: Convert to fraction form
1,580,538.65/2,181,146.00 = 855,387.09/x - Step 3: Cross multiply
1,580,538.65x = 2,181,146.00 × 855,387.09 - Step 4: Simplify right side
1,580,538.65x = 1,865,724,125,528.20 - Step 5: Solve for x
x = 1,865,724,125,528.20/1,580,538.65 - Step 6: Final answer
x = 1,180,435.63
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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.