Finding the Fourth Proportional to 819,211.68, 1,130,536.08 and 479,648.16
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Solution
The fourth proportional to 819,211.68, 1,130,536.08 and 479,648.16 is: 661,928.49
Step by Step Solution
- Step 1: Write the proportion equation
819,211.68 : 1,130,536.08 = 479,648.16 : x - Step 2: Convert to fraction form
819,211.68/1,130,536.08 = 479,648.16/x - Step 3: Cross multiply
819,211.68x = 1,130,536.08 × 479,648.16 - Step 4: Simplify right side
819,211.68x = 542,259,550,585.61 - Step 5: Solve for x
x = 542,259,550,585.61/819,211.68 - Step 6: Final answer
x = 661,928.49
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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.