Finding the Fourth Proportional to 2,122,279.14, 2,930,690.49 and 1,348,159.50
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Solution
The fourth proportional to 2,122,279.14, 2,930,690.49 and 1,348,159.50 is: 1,861,695.83
Step by Step Solution
- Step 1: Write the proportion equation
2,122,279.14 : 2,930,690.49 = 1,348,159.50 : x - Step 2: Convert to fraction form
2,122,279.14/2,930,690.49 = 1,348,159.50/x - Step 3: Cross multiply
2,122,279.14x = 2,930,690.49 × 1,348,159.50 - Step 4: Simplify right side
2,122,279.14x = 3,951,038,225,653.16 - Step 5: Solve for x
x = 3,951,038,225,653.16/2,122,279.14 - Step 6: Final answer
x = 1,861,695.83
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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.