Finding the Fourth Proportional to 4,920,781.56, 7,381,394.58 and 1,508,819.16
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Solution
The fourth proportional to 4,920,781.56, 7,381,394.58 and 1,508,819.16 is: 2,263,296.88
Step by Step Solution
- Step 1: Write the proportion equation
4,920,781.56 : 7,381,394.58 = 1,508,819.16 : x - Step 2: Convert to fraction form
4,920,781.56/7,381,394.58 = 1,508,819.16/x - Step 3: Cross multiply
4,920,781.56x = 7,381,394.58 × 1,508,819.16 - Step 4: Simplify right side
4,920,781.56x = 11,137,189,569,824.15 - Step 5: Solve for x
x = 11,137,189,569,824.15/4,920,781.56 - Step 6: Final answer
x = 2,263,296.88
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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.