Finding the Fourth Proportional to 3,349,128.72, 4,621,658.10 and 1,898,922.18
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Solution
The fourth proportional to 3,349,128.72, 4,621,658.10 and 1,898,922.18 is: 2,620,433.49
Step by Step Solution
- Step 1: Write the proportion equation
3,349,128.72 : 4,621,658.10 = 1,898,922.18 : x - Step 2: Convert to fraction form
3,349,128.72/4,621,658.10 = 1,898,922.18/x - Step 3: Cross multiply
3,349,128.72x = 4,621,658.10 × 1,898,922.18 - Step 4: Simplify right side
3,349,128.72x = 8,776,169,074,466.66 - Step 5: Solve for x
x = 8,776,169,074,466.66/3,349,128.72 - Step 6: Final answer
x = 2,620,433.49
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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.