Finding the Fourth Proportional to 1,361,989, 2,042,228.58 and 631,715.68
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Solution
The fourth proportional to 1,361,989, 2,042,228.58 and 631,715.68 is: 947,223.37
Step by Step Solution
- Step 1: Write the proportion equation
1,361,989 : 2,042,228.58 = 631,715.68 : x - Step 2: Convert to fraction form
1,361,989/2,042,228.58 = 631,715.68/x - Step 3: Cross multiply
1,361,989x = 2,042,228.58 × 631,715.68 - Step 4: Simplify right side
1,361,989x = 1,290,107,816,130.13 - Step 5: Solve for x
x = 1,290,107,816,130.13/1,361,989 - Step 6: Final answer
x = 947,223.37
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.