Finding the Fourth Proportional to 819,448.09, 1,130,912.63 and 497,239.81
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Solution
The fourth proportional to 819,448.09, 1,130,912.63 and 497,239.81 is: 686,236.00
Step by Step Solution
- Step 1: Write the proportion equation
819,448.09 : 1,130,912.63 = 497,239.81 : x - Step 2: Convert to fraction form
819,448.09/1,130,912.63 = 497,239.81/x - Step 3: Cross multiply
819,448.09x = 1,130,912.63 × 497,239.81 - Step 4: Simplify right side
819,448.09x = 562,334,778,781.60 - Step 5: Solve for x
x = 562,334,778,781.60/819,448.09 - Step 6: Final answer
x = 686,236.00
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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.