Finding the Fourth Proportional to 2,107,580.91, 2,908,514.80 and 1,292,234.16
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Solution
The fourth proportional to 2,107,580.91, 2,908,514.80 and 1,292,234.16 is: 1,783,315.73
Step by Step Solution
- Step 1: Write the proportion equation
2,107,580.91 : 2,908,514.80 = 1,292,234.16 : x - Step 2: Convert to fraction form
2,107,580.91/2,908,514.80 = 1,292,234.16/x - Step 3: Cross multiply
2,107,580.91x = 2,908,514.80 × 1,292,234.16 - Step 4: Simplify right side
2,107,580.91x = 3,758,482,191,947.79 - Step 5: Solve for x
x = 3,758,482,191,947.79/2,107,580.91 - Step 6: Final answer
x = 1,783,315.73
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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.