Finding the Fourth Proportional to 3,557,311.70, 4,909,084.50 and 1,925,718.63
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Solution
The fourth proportional to 3,557,311.70, 4,909,084.50 and 1,925,718.63 is: 2,657,488.65
Step by Step Solution
- Step 1: Write the proportion equation
3,557,311.70 : 4,909,084.50 = 1,925,718.63 : x - Step 2: Convert to fraction form
3,557,311.70/4,909,084.50 = 1,925,718.63/x - Step 3: Cross multiply
3,557,311.70x = 4,909,084.50 × 1,925,718.63 - Step 4: Simplify right side
3,557,311.70x = 9,453,515,470,672.79 - Step 5: Solve for x
x = 9,453,515,470,672.79/3,557,311.70 - Step 6: Final answer
x = 2,657,488.65
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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.