Finding the Fourth Proportional to 843,143.88, 1,163,566.20 and 461,170.68
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Solution
The fourth proportional to 843,143.88, 1,163,566.20 and 461,170.68 is: 636,430.66
Step by Step Solution
- Step 1: Write the proportion equation
843,143.88 : 1,163,566.20 = 461,170.68 : x - Step 2: Convert to fraction form
843,143.88/1,163,566.20 = 461,170.68/x - Step 3: Cross multiply
843,143.88x = 1,163,566.20 × 461,170.68 - Step 4: Simplify right side
843,143.88x = 536,602,615,679.02 - Step 5: Solve for x
x = 536,602,615,679.02/843,143.88 - Step 6: Final answer
x = 636,430.66
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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.