Finding the Fourth Proportional to 3,387,379.12, 4,674,462.24 and 1,917,256.12
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Solution
The fourth proportional to 3,387,379.12, 4,674,462.24 and 1,917,256.12 is: 2,645,744.99
Step by Step Solution
- Step 1: Write the proportion equation
3,387,379.12 : 4,674,462.24 = 1,917,256.12 : x - Step 2: Convert to fraction form
3,387,379.12/4,674,462.24 = 1,917,256.12/x - Step 3: Cross multiply
3,387,379.12x = 4,674,462.24 × 1,917,256.12 - Step 4: Simplify right side
3,387,379.12x = 8,962,141,337,348.91 - Step 5: Solve for x
x = 8,962,141,337,348.91/3,387,379.12 - Step 6: Final answer
x = 2,645,744.99
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1.5x scale
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.