Finding the Fourth Proportional to 4,658,319, 6,428,578.68 and 2,621,128.50
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Solution
The fourth proportional to 4,658,319, 6,428,578.68 and 2,621,128.50 is: 3,617,212.73
Step by Step Solution
- Step 1: Write the proportion equation
4,658,319 : 6,428,578.68 = 2,621,128.50 : x - Step 2: Convert to fraction form
4,658,319/6,428,578.68 = 2,621,128.50/x - Step 3: Cross multiply
4,658,319x = 6,428,578.68 × 2,621,128.50 - Step 4: Simplify right side
4,658,319x = 16,850,130,792,640.38 - Step 5: Solve for x
x = 16,850,130,792,640.38/4,658,319 - Step 6: Final answer
x = 3,617,212.73
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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.