Finding the Fourth Proportional to 628,445.19, 942,815.43 and 207,721.08
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Solution
The fourth proportional to 628,445.19, 942,815.43 and 207,721.08 is: 311,630.42
Step by Step Solution
- Step 1: Write the proportion equation
628,445.19 : 942,815.43 = 207,721.08 : x - Step 2: Convert to fraction form
628,445.19/942,815.43 = 207,721.08/x - Step 3: Cross multiply
628,445.19x = 942,815.43 × 207,721.08 - Step 4: Simplify right side
628,445.19x = 195,842,639,360.26 - Step 5: Solve for x
x = 195,842,639,360.26/628,445.19 - Step 6: Final answer
x = 311,630.42
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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.