Finding the Fourth Proportional to 841,128.05, 1,160,741.73 and 478,544.11
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Solution
The fourth proportional to 841,128.05, 1,160,741.73 and 478,544.11 is: 660,382.34
Step by Step Solution
- Step 1: Write the proportion equation
841,128.05 : 1,160,741.73 = 478,544.11 : x - Step 2: Convert to fraction form
841,128.05/1,160,741.73 = 478,544.11/x - Step 3: Cross multiply
841,128.05x = 1,160,741.73 × 478,544.11 - Step 4: Simplify right side
841,128.05x = 555,466,112,319.00 - Step 5: Solve for x
x = 555,466,112,319.00/841,128.05 - Step 6: Final answer
x = 660,382.34
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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.