Finding the Fourth Proportional to 4,278,833.15, 6,416,893.41 and 1,399,534.20
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Solution
The fourth proportional to 4,278,833.15, 6,416,893.41 and 1,399,534.20 is: 2,098,857.67
Step by Step Solution
- Step 1: Write the proportion equation
4,278,833.15 : 6,416,893.41 = 1,399,534.20 : x - Step 2: Convert to fraction form
4,278,833.15/6,416,893.41 = 1,399,534.20/x - Step 3: Cross multiply
4,278,833.15x = 6,416,893.41 × 1,399,534.20 - Step 4: Simplify right side
4,278,833.15x = 8,980,661,779,801.37 - Step 5: Solve for x
x = 8,980,661,779,801.37/4,278,833.15 - Step 6: Final answer
x = 2,098,857.67
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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.