Finding the Fourth Proportional to 4,087,641.30, 5,640,675.12 and 2,455,078.62
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Solution
The fourth proportional to 4,087,641.30, 5,640,675.12 and 2,455,078.62 is: 3,387,846.41
Step by Step Solution
- Step 1: Write the proportion equation
4,087,641.30 : 5,640,675.12 = 2,455,078.62 : x - Step 2: Convert to fraction form
4,087,641.30/5,640,675.12 = 2,455,078.62/x - Step 3: Cross multiply
4,087,641.30x = 5,640,675.12 × 2,455,078.62 - Step 4: Simplify right side
4,087,641.30x = 13,848,300,889,477.94 - Step 5: Solve for x
x = 13,848,300,889,477.94/4,087,641.30 - Step 6: Final answer
x = 3,387,846.41
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1.5x scale
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.