Finding the Fourth Proportional to 725,409.36, 1,001,070.44 and 403,149.68
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Solution
The fourth proportional to 725,409.36, 1,001,070.44 and 403,149.68 is: 556,349.63
Step by Step Solution
- Step 1: Write the proportion equation
725,409.36 : 1,001,070.44 = 403,149.68 : x - Step 2: Convert to fraction form
725,409.36/1,001,070.44 = 403,149.68/x - Step 3: Cross multiply
725,409.36x = 1,001,070.44 × 403,149.68 - Step 4: Simplify right side
725,409.36x = 403,581,227,543.46 - Step 5: Solve for x
x = 403,581,227,543.46/725,409.36 - Step 6: Final answer
x = 556,349.63
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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.