Finding the Fourth Proportional to 6,261,125.60, 8,640,385.20 and 3,545,400.80
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Solution
The fourth proportional to 6,261,125.60, 8,640,385.20 and 3,545,400.80 is: 4,892,671.15
Step by Step Solution
- Step 1: Write the proportion equation
6,261,125.60 : 8,640,385.20 = 3,545,400.80 : x - Step 2: Convert to fraction form
6,261,125.60/8,640,385.20 = 3,545,400.80/x - Step 3: Cross multiply
6,261,125.60x = 8,640,385.20 × 3,545,400.80 - Step 4: Simplify right side
6,261,125.60x = 30,633,628,600,388.16 - Step 5: Solve for x
x = 30,633,628,600,388.16/6,261,125.60 - Step 6: Final answer
x = 4,892,671.15
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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.