Finding the Fourth Proportional to 841,374.74, 1,161,112.12 and 478,760.42
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Solution
The fourth proportional to 841,374.74, 1,161,112.12 and 478,760.42 is: 660,697.90
Step by Step Solution
- Step 1: Write the proportion equation
841,374.74 : 1,161,112.12 = 478,760.42 : x - Step 2: Convert to fraction form
841,374.74/1,161,112.12 = 478,760.42/x - Step 3: Cross multiply
841,374.74x = 1,161,112.12 × 478,760.42 - Step 4: Simplify right side
841,374.74x = 555,894,526,238.29 - Step 5: Solve for x
x = 555,894,526,238.29/841,374.74 - Step 6: Final answer
x = 660,697.90
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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.