Finding the Fourth Proportional to 2,855,551.20, 4,287,128.16 and 1,658,332.80
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Solution
The fourth proportional to 2,855,551.20, 4,287,128.16 and 1,658,332.80 is: 2,489,706.80
Step by Step Solution
- Step 1: Write the proportion equation
2,855,551.20 : 4,287,128.16 = 1,658,332.80 : x - Step 2: Convert to fraction form
2,855,551.20/4,287,128.16 = 1,658,332.80/x - Step 3: Cross multiply
2,855,551.20x = 4,287,128.16 × 1,658,332.80 - Step 4: Simplify right side
2,855,551.20x = 7,109,485,245,531.65 - Step 5: Solve for x
x = 7,109,485,245,531.65/2,855,551.20 - Step 6: Final answer
x = 2,489,706.80
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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.