Finding the Fourth Proportional to 4,698,804.62, 7,048,212.56 and 1,287,120.63
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Solution
The fourth proportional to 4,698,804.62, 7,048,212.56 and 1,287,120.63 is: 1,930,682.49
Step by Step Solution
- Step 1: Write the proportion equation
4,698,804.62 : 7,048,212.56 = 1,287,120.63 : x - Step 2: Convert to fraction form
4,698,804.62/7,048,212.56 = 1,287,120.63/x - Step 3: Cross multiply
4,698,804.62x = 7,048,212.56 × 1,287,120.63 - Step 4: Simplify right side
4,698,804.62x = 9,071,899,784,165.51 - Step 5: Solve for x
x = 9,071,899,784,165.51/4,698,804.62 - Step 6: Final answer
x = 1,930,682.49
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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.