Finding the Fourth Proportional to 3,912,987.40, 5,862,482.70 and 2,415,329.80
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Solution
The fourth proportional to 3,912,987.40, 5,862,482.70 and 2,415,329.80 is: 3,618,674.87
Step by Step Solution
- Step 1: Write the proportion equation
3,912,987.40 : 5,862,482.70 = 2,415,329.80 : x - Step 2: Convert to fraction form
3,912,987.40/5,862,482.70 = 2,415,329.80/x - Step 3: Cross multiply
3,912,987.40x = 5,862,482.70 × 2,415,329.80 - Step 4: Simplify right side
3,912,987.40x = 14,159,829,167,294.46 - Step 5: Solve for x
x = 14,159,829,167,294.46/3,912,987.40 - Step 6: Final answer
x = 3,618,674.87
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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.