Finding the Fourth Proportional to 1,368,477.76, 1,888,453.05 and 787,620.26
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Solution
The fourth proportional to 1,368,477.76, 1,888,453.05 and 787,620.26 is: 1,086,889.34
Step by Step Solution
- Step 1: Write the proportion equation
1,368,477.76 : 1,888,453.05 = 787,620.26 : x - Step 2: Convert to fraction form
1,368,477.76/1,888,453.05 = 787,620.26/x - Step 3: Cross multiply
1,368,477.76x = 1,888,453.05 × 787,620.26 - Step 4: Simplify right side
1,368,477.76x = 1,487,383,886,441.79 - Step 5: Solve for x
x = 1,487,383,886,441.79/1,368,477.76 - Step 6: Final answer
x = 1,086,889.34
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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.