Finding the Fourth Proportional to 2,311,277.60, 3,189,544.80 and 1,292,681.60
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Solution
The fourth proportional to 2,311,277.60, 3,189,544.80 and 1,292,681.60 is: 1,783,890.38
Step by Step Solution
- Step 1: Write the proportion equation
2,311,277.60 : 3,189,544.80 = 1,292,681.60 : x - Step 2: Convert to fraction form
2,311,277.60/3,189,544.80 = 1,292,681.60/x - Step 3: Cross multiply
2,311,277.60x = 3,189,544.80 × 1,292,681.60 - Step 4: Simplify right side
2,311,277.60x = 4,123,065,875,335.68 - Step 5: Solve for x
x = 4,123,065,875,335.68/2,311,277.60 - Step 6: Final answer
x = 1,783,890.38
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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.