Finding the Fourth Proportional to 831,693.09, 1,147,749.68 and 469,124.17
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Solution
The fourth proportional to 831,693.09, 1,147,749.68 and 469,124.17 is: 647,398.80
Step by Step Solution
- Step 1: Write the proportion equation
831,693.09 : 1,147,749.68 = 469,124.17 : x - Step 2: Convert to fraction form
831,693.09/1,147,749.68 = 469,124.17/x - Step 3: Cross multiply
831,693.09x = 1,147,749.68 × 469,124.17 - Step 4: Simplify right side
831,693.09x = 538,437,110,782.77 - Step 5: Solve for x
x = 538,437,110,782.77/831,693.09 - Step 6: Final answer
x = 647,398.80
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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.