Finding the Fourth Proportional to 1,276,837.48, 1,915,536.42 and 378,349.54
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Solution
The fourth proportional to 1,276,837.48, 1,915,536.42 and 378,349.54 is: 567,607.34
Step by Step Solution
- Step 1: Write the proportion equation
1,276,837.48 : 1,915,536.42 = 378,349.54 : x - Step 2: Convert to fraction form
1,276,837.48/1,915,536.42 = 378,349.54/x - Step 3: Cross multiply
1,276,837.48x = 1,915,536.42 × 378,349.54 - Step 4: Simplify right side
1,276,837.48x = 724,742,323,360.25 - Step 5: Solve for x
x = 724,742,323,360.25/1,276,837.48 - Step 6: Final answer
x = 567,607.34
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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.