Finding the Fourth Proportional to 2,148,149.70, 2,963,720.99 and 1,217,757.65
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Solution
The fourth proportional to 2,148,149.70, 2,963,720.99 and 1,217,757.65 is: 1,680,094.22
Step by Step Solution
- Step 1: Write the proportion equation
2,148,149.70 : 2,963,720.99 = 1,217,757.65 : x - Step 2: Convert to fraction form
2,148,149.70/2,963,720.99 = 1,217,757.65/x - Step 3: Cross multiply
2,148,149.70x = 2,963,720.99 × 1,217,757.65 - Step 4: Simplify right side
2,148,149.70x = 3,609,093,896,263.86 - Step 5: Solve for x
x = 3,609,093,896,263.86/2,148,149.70 - Step 6: Final answer
x = 1,680,094.22
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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.