Finding the Fourth Proportional to 1,119,839.99, 1,678,765.30 and 436,569.35
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Solution
The fourth proportional to 1,119,839.99, 1,678,765.30 and 436,569.35 is: 654,466.24
Step by Step Solution
- Step 1: Write the proportion equation
1,119,839.99 : 1,678,765.30 = 436,569.35 : x - Step 2: Convert to fraction form
1,119,839.99/1,678,765.30 = 436,569.35/x - Step 3: Cross multiply
1,119,839.99x = 1,678,765.30 × 436,569.35 - Step 4: Simplify right side
1,119,839.99x = 732,897,466,338.31 - Step 5: Solve for x
x = 732,897,466,338.31/1,119,839.99 - Step 6: Final answer
x = 654,466.24
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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.