Finding the Fourth Proportional to 2,107,038.75, 2,907,721.19 and 1,140,169.05
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Solution
The fourth proportional to 2,107,038.75, 2,907,721.19 and 1,140,169.05 is: 1,573,437.46
Step by Step Solution
- Step 1: Write the proportion equation
2,107,038.75 : 2,907,721.19 = 1,140,169.05 : x - Step 2: Convert to fraction form
2,107,038.75/2,907,721.19 = 1,140,169.05/x - Step 3: Cross multiply
2,107,038.75x = 2,907,721.19 × 1,140,169.05 - Step 4: Simplify right side
2,107,038.75x = 3,315,293,706,867.17 - Step 5: Solve for x
x = 3,315,293,706,867.17/2,107,038.75 - Step 6: Final answer
x = 1,573,437.46
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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.