Finding the Fourth Proportional to 3,579,418.54, 4,939,701.42 and 1,947,931.12
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Solution
The fourth proportional to 3,579,418.54, 4,939,701.42 and 1,947,931.12 is: 2,688,201.45
Step by Step Solution
- Step 1: Write the proportion equation
3,579,418.54 : 4,939,701.42 = 1,947,931.12 : x - Step 2: Convert to fraction form
3,579,418.54/4,939,701.42 = 1,947,931.12/x - Step 3: Cross multiply
3,579,418.54x = 4,939,701.42 × 1,947,931.12 - Step 4: Simplify right side
3,579,418.54x = 9,622,198,119,526.19 - Step 5: Solve for x
x = 9,622,198,119,526.19/3,579,418.54 - Step 6: Final answer
x = 2,688,201.45
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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.