Finding the Fourth Proportional to 1,191,396.99, 1,788,495.17 and 743,149.47
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Solution
The fourth proportional to 1,191,396.99, 1,788,495.17 and 743,149.47 is: 1,115,597.28
Step by Step Solution
- Step 1: Write the proportion equation
1,191,396.99 : 1,788,495.17 = 743,149.47 : x - Step 2: Convert to fraction form
1,191,396.99/1,788,495.17 = 743,149.47/x - Step 3: Cross multiply
1,191,396.99x = 1,788,495.17 × 743,149.47 - Step 4: Simplify right side
1,191,396.99x = 1,329,119,237,683.06 - Step 5: Solve for x
x = 1,329,119,237,683.06/1,191,396.99 - Step 6: Final answer
x = 1,115,597.28
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.