Finding the Fourth Proportional to 1,690,381.71, 2,535,988.50 and 492,315.30
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Solution
The fourth proportional to 1,690,381.71, 2,535,988.50 and 492,315.30 is: 738,594.09
Step by Step Solution
- Step 1: Write the proportion equation
1,690,381.71 : 2,535,988.50 = 492,315.30 : x - Step 2: Convert to fraction form
1,690,381.71/2,535,988.50 = 492,315.30/x - Step 3: Cross multiply
1,690,381.71x = 2,535,988.50 × 492,315.30 - Step 4: Simplify right side
1,690,381.71x = 1,248,505,939,174.05 - Step 5: Solve for x
x = 1,248,505,939,174.05/1,690,381.71 - Step 6: Final answer
x = 738,594.09
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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.