Finding the Fourth Proportional to 819,447.84, 1,130,912.28 and 497,239.56
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Solution
The fourth proportional to 819,447.84, 1,130,912.28 and 497,239.56 is: 686,235.65
Step by Step Solution
- Step 1: Write the proportion equation
819,447.84 : 1,130,912.28 = 497,239.56 : x - Step 2: Convert to fraction form
819,447.84/1,130,912.28 = 497,239.56/x - Step 3: Cross multiply
819,447.84x = 1,130,912.28 × 497,239.56 - Step 4: Simplify right side
819,447.84x = 562,334,324,505.80 - Step 5: Solve for x
x = 562,334,324,505.80/819,447.84 - Step 6: Final answer
x = 686,235.65
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.