Finding the Fourth Proportional to 831,137.07, 1,248,477.66 and 782,543.99
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Solution
The fourth proportional to 831,137.07, 1,248,477.66 and 782,543.99 is: 1,175,484.43
Step by Step Solution
- Step 1: Write the proportion equation
831,137.07 : 1,248,477.66 = 782,543.99 : x - Step 2: Convert to fraction form
831,137.07/1,248,477.66 = 782,543.99/x - Step 3: Cross multiply
831,137.07x = 1,248,477.66 × 782,543.99 - Step 4: Simplify right side
831,137.07x = 976,988,685,569.54 - Step 5: Solve for x
x = 976,988,685,569.54/831,137.07 - Step 6: Final answer
x = 1,175,484.43
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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.