Finding the Fourth Proportional to 1,487,581.10, 2,231,699.70 and 476,749.70
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Solution
The fourth proportional to 1,487,581.10, 2,231,699.70 and 476,749.70 is: 715,229.69
Step by Step Solution
- Step 1: Write the proportion equation
1,487,581.10 : 2,231,699.70 = 476,749.70 : x - Step 2: Convert to fraction form
1,487,581.10/2,231,699.70 = 476,749.70/x - Step 3: Cross multiply
1,487,581.10x = 2,231,699.70 × 476,749.70 - Step 4: Simplify right side
1,487,581.10x = 1,063,962,162,465.09 - Step 5: Solve for x
x = 1,063,962,162,465.09/1,487,581.10 - Step 6: Final answer
x = 715,229.69
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.