Finding the Fourth Proportional to 2,781,780.36, 4,172,670.54 and 1,518,919.08
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Solution
The fourth proportional to 2,781,780.36, 4,172,670.54 and 1,518,919.08 is: 2,278,378.62
Step by Step Solution
- Step 1: Write the proportion equation
2,781,780.36 : 4,172,670.54 = 1,518,919.08 : x - Step 2: Convert to fraction form
2,781,780.36/4,172,670.54 = 1,518,919.08/x - Step 3: Cross multiply
2,781,780.36x = 4,172,670.54 × 1,518,919.08 - Step 4: Simplify right side
2,781,780.36x = 6,337,948,897,759.90 - Step 5: Solve for x
x = 6,337,948,897,759.90/2,781,780.36 - Step 6: Final answer
x = 2,278,378.62
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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.