Finding the Fourth Proportional to 2,126,785.80, 2,934,748.98 and 1,310,858.76
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Solution
The fourth proportional to 2,126,785.80, 2,934,748.98 and 1,310,858.76 is: 1,808,852.31
Step by Step Solution
- Step 1: Write the proportion equation
2,126,785.80 : 2,934,748.98 = 1,310,858.76 : x - Step 2: Convert to fraction form
2,126,785.80/2,934,748.98 = 1,310,858.76/x - Step 3: Cross multiply
2,126,785.80x = 2,934,748.98 × 1,310,858.76 - Step 4: Simplify right side
2,126,785.80x = 3,847,041,408,834.07 - Step 5: Solve for x
x = 3,847,041,408,834.07/2,126,785.80 - Step 6: Final answer
x = 1,808,852.31
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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.