Finding the Fourth Proportional to 3,779,836.80, 5,669,777.79 and 939,948.99
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Solution
The fourth proportional to 3,779,836.80, 5,669,777.79 and 939,948.99 is: 1,409,929.10
Step by Step Solution
- Step 1: Write the proportion equation
3,779,836.80 : 5,669,777.79 = 939,948.99 : x - Step 2: Convert to fraction form
3,779,836.80/5,669,777.79 = 939,948.99/x - Step 3: Cross multiply
3,779,836.80x = 5,669,777.79 × 939,948.99 - Step 4: Simplify right side
3,779,836.80x = 5,329,301,907,234.93 - Step 5: Solve for x
x = 5,329,301,907,234.93/3,779,836.80 - Step 6: Final answer
x = 1,409,929.10
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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.