Finding the Fourth Proportional to 816,107.76, 1,126,140.84 and 453,449.70
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Solution
The fourth proportional to 816,107.76, 1,126,140.84 and 453,449.70 is: 625,711.76
Step by Step Solution
- Step 1: Write the proportion equation
816,107.76 : 1,126,140.84 = 453,449.70 : x - Step 2: Convert to fraction form
816,107.76/1,126,140.84 = 453,449.70/x - Step 3: Cross multiply
816,107.76x = 1,126,140.84 × 453,449.70 - Step 4: Simplify right side
816,107.76x = 510,648,226,055.75 - Step 5: Solve for x
x = 510,648,226,055.75/816,107.76 - Step 6: Final answer
x = 625,711.76
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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.