Finding the Fourth Proportional to 3,578,709.57, 4,938,580.92 and 2,128,373.19
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Solution
The fourth proportional to 3,578,709.57, 4,938,580.92 and 2,128,373.19 is: 2,937,132.23
Step by Step Solution
- Step 1: Write the proportion equation
3,578,709.57 : 4,938,580.92 = 2,128,373.19 : x - Step 2: Convert to fraction form
3,578,709.57/4,938,580.92 = 2,128,373.19/x - Step 3: Cross multiply
3,578,709.57x = 4,938,580.92 × 2,128,373.19 - Step 4: Simplify right side
3,578,709.57x = 10,511,143,226,773.54 - Step 5: Solve for x
x = 10,511,143,226,773.54/3,578,709.57 - Step 6: Final answer
x = 2,937,132.23
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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.