Finding the Fourth Proportional to 813,440.53, 1,122,615.14 and 450,978.09
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Solution
The fourth proportional to 813,440.53, 1,122,615.14 and 450,978.09 is: 622,387.03
Step by Step Solution
- Step 1: Write the proportion equation
813,440.53 : 1,122,615.14 = 450,978.09 : x - Step 2: Convert to fraction form
813,440.53/1,122,615.14 = 450,978.09/x - Step 3: Cross multiply
813,440.53x = 1,122,615.14 × 450,978.09 - Step 4: Simplify right side
813,440.53x = 506,274,831,642.28 - Step 5: Solve for x
x = 506,274,831,642.28/813,440.53 - Step 6: Final answer
x = 622,387.03
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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.