Finding the Fourth Proportional to 831,948.14, 1,148,088.66 and 469,448.84
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Solution
The fourth proportional to 831,948.14, 1,148,088.66 and 469,448.84 is: 647,839.53
Step by Step Solution
- Step 1: Write the proportion equation
831,948.14 : 1,148,088.66 = 469,448.84 : x - Step 2: Convert to fraction form
831,948.14/1,148,088.66 = 469,448.84/x - Step 3: Cross multiply
831,948.14x = 1,148,088.66 × 469,448.84 - Step 4: Simplify right side
831,948.14x = 538,968,889,654.15 - Step 5: Solve for x
x = 538,968,889,654.15/831,948.14 - Step 6: Final answer
x = 647,839.53
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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.