Finding the Fourth Proportional to 874,424.16, 1,311,636.24 and 243,387.18
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Solution
The fourth proportional to 874,424.16, 1,311,636.24 and 243,387.18 is: 365,080.77
Step by Step Solution
- Step 1: Write the proportion equation
874,424.16 : 1,311,636.24 = 243,387.18 : x - Step 2: Convert to fraction form
874,424.16/1,311,636.24 = 243,387.18/x - Step 3: Cross multiply
874,424.16x = 1,311,636.24 × 243,387.18 - Step 4: Simplify right side
874,424.16x = 319,235,445,639.40 - Step 5: Solve for x
x = 319,235,445,639.40/874,424.16 - Step 6: Final answer
x = 365,080.77
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1.5x scale
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.