Finding the Fourth Proportional to 894,453.54, 1,234,378.79 and 512,554.13
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Solution
The fourth proportional to 894,453.54, 1,234,378.79 and 512,554.13 is: 707,343.56
Step by Step Solution
- Step 1: Write the proportion equation
894,453.54 : 1,234,378.79 = 512,554.13 : x - Step 2: Convert to fraction form
894,453.54/1,234,378.79 = 512,554.13/x - Step 3: Cross multiply
894,453.54x = 1,234,378.79 × 512,554.13 - Step 4: Simplify right side
894,453.54x = 632,685,947,498.35 - Step 5: Solve for x
x = 632,685,947,498.35/894,453.54 - Step 6: Final answer
x = 707,343.56
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1.5x scale
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.