Finding the Fourth Proportional to 2,128,035.74, 2,935,922.04 and 1,638,155.06
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Solution
The fourth proportional to 2,128,035.74, 2,935,922.04 and 1,638,155.06 is: 2,260,063.33
Step by Step Solution
- Step 1: Write the proportion equation
2,128,035.74 : 2,935,922.04 = 1,638,155.06 : x - Step 2: Convert to fraction form
2,128,035.74/2,935,922.04 = 1,638,155.06/x - Step 3: Cross multiply
2,128,035.74x = 2,935,922.04 × 1,638,155.06 - Step 4: Simplify right side
2,128,035.74x = 4,809,495,545,591.52 - Step 5: Solve for x
x = 4,809,495,545,591.52/2,128,035.74 - Step 6: Final answer
x = 2,260,063.33
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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.