Finding the Fourth Proportional to 1,178,085.60, 1,625,734.80 and 694,671.12
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Solution
The fourth proportional to 1,178,085.60, 1,625,734.80 and 694,671.12 is: 958,632.39
Step by Step Solution
- Step 1: Write the proportion equation
1,178,085.60 : 1,625,734.80 = 694,671.12 : x - Step 2: Convert to fraction form
1,178,085.60/1,625,734.80 = 694,671.12/x - Step 3: Cross multiply
1,178,085.60x = 1,625,734.80 × 694,671.12 - Step 4: Simplify right side
1,178,085.60x = 1,129,351,014,338.98 - Step 5: Solve for x
x = 1,129,351,014,338.98/1,178,085.60 - Step 6: Final answer
x = 958,632.39
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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.