Finding the Fourth Proportional to 3,074,877.80, 4,243,306.47 and 1,698,315.87
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Solution
The fourth proportional to 3,074,877.80, 4,243,306.47 and 1,698,315.87 is: 2,343,662.15
Step by Step Solution
- Step 1: Write the proportion equation
3,074,877.80 : 4,243,306.47 = 1,698,315.87 : x - Step 2: Convert to fraction form
3,074,877.80/4,243,306.47 = 1,698,315.87/x - Step 3: Cross multiply
3,074,877.80x = 4,243,306.47 × 1,698,315.87 - Step 4: Simplify right side
3,074,877.80x = 7,206,474,689,566.57 - Step 5: Solve for x
x = 7,206,474,689,566.57/3,074,877.80 - Step 6: Final answer
x = 2,343,662.15
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.