Finding the Fourth Proportional to 1,382,648.48, 2,081,442.08 and 1,243,609.68
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Solution
The fourth proportional to 1,382,648.48, 2,081,442.08 and 1,243,609.68 is: 1,872,132.76
Step by Step Solution
- Step 1: Write the proportion equation
1,382,648.48 : 2,081,442.08 = 1,243,609.68 : x - Step 2: Convert to fraction form
1,382,648.48/2,081,442.08 = 1,243,609.68/x - Step 3: Cross multiply
1,382,648.48x = 2,081,442.08 × 1,243,609.68 - Step 4: Simplify right side
1,382,648.48x = 2,588,501,519,047.33 - Step 5: Solve for x
x = 2,588,501,519,047.33/1,382,648.48 - Step 6: Final answer
x = 1,872,132.76
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.