Finding the Fourth Proportional to 3,686,877.71, 5,530,334.05 and 1,128,088.57
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Solution
The fourth proportional to 3,686,877.71, 5,530,334.05 and 1,128,088.57 is: 1,692,138.21
Step by Step Solution
- Step 1: Write the proportion equation
3,686,877.71 : 5,530,334.05 = 1,128,088.57 : x - Step 2: Convert to fraction form
3,686,877.71/5,530,334.05 = 1,128,088.57/x - Step 3: Cross multiply
3,686,877.71x = 5,530,334.05 × 1,128,088.57 - Step 4: Simplify right side
3,686,877.71x = 6,238,706,624,446.37 - Step 5: Solve for x
x = 6,238,706,624,446.37/3,686,877.71 - Step 6: Final answer
x = 1,692,138.21
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.