Finding the Fourth Proportional to 2,015,121.58, 2,776,137.74 and 1,402,220.38
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Solution
The fourth proportional to 2,015,121.58, 2,776,137.74 and 1,402,220.38 is: 1,931,772.73
Step by Step Solution
- Step 1: Write the proportion equation
2,015,121.58 : 2,776,137.74 = 1,402,220.38 : x - Step 2: Convert to fraction form
2,015,121.58/2,776,137.74 = 1,402,220.38/x - Step 3: Cross multiply
2,015,121.58x = 2,776,137.74 × 1,402,220.38 - Step 4: Simplify right side
2,015,121.58x = 3,892,756,916,715.14 - Step 5: Solve for x
x = 3,892,756,916,715.14/2,015,121.58 - Step 6: Final answer
x = 1,931,772.73
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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.