Finding the Fourth Proportional to 646,641.36, 892,571.88 and 417,205.08
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Solution
The fourth proportional to 646,641.36, 892,571.88 and 417,205.08 is: 575,876.44
Step by Step Solution
- Step 1: Write the proportion equation
646,641.36 : 892,571.88 = 417,205.08 : x - Step 2: Convert to fraction form
646,641.36/892,571.88 = 417,205.08/x - Step 3: Cross multiply
646,641.36x = 892,571.88 × 417,205.08 - Step 4: Simplify right side
646,641.36x = 372,385,522,601.15 - Step 5: Solve for x
x = 372,385,522,601.15/646,641.36 - Step 6: Final answer
x = 575,876.44
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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.