Finding the Fourth Proportional to 2,118,285.95, 3,175,638.26 and 919,306.94
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Solution
The fourth proportional to 2,118,285.95, 3,175,638.26 and 919,306.94 is: 1,378,183.28
Step by Step Solution
- Step 1: Write the proportion equation
2,118,285.95 : 3,175,638.26 = 919,306.94 : x - Step 2: Convert to fraction form
2,118,285.95/3,175,638.26 = 919,306.94/x - Step 3: Cross multiply
2,118,285.95x = 3,175,638.26 × 919,306.94 - Step 4: Simplify right side
2,118,285.95x = 2,919,386,270,872.80 - Step 5: Solve for x
x = 2,919,386,270,872.80/2,118,285.95 - Step 6: Final answer
x = 1,378,183.28
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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.