Finding the Fourth Proportional to 1,567,382.70, 2,351,074.05 and 385,430.70
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Solution
The fourth proportional to 1,567,382.70, 2,351,074.05 and 385,430.70 is: 578,146.05
Step by Step Solution
- Step 1: Write the proportion equation
1,567,382.70 : 2,351,074.05 = 385,430.70 : x - Step 2: Convert to fraction form
1,567,382.70/2,351,074.05 = 385,430.70/x - Step 3: Cross multiply
1,567,382.70x = 2,351,074.05 × 385,430.70 - Step 4: Simplify right side
1,567,382.70x = 906,176,116,843.34 - Step 5: Solve for x
x = 906,176,116,843.34/1,567,382.70 - Step 6: Final answer
x = 578,146.05
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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.