Finding the Fourth Proportional to 561,219.37, 774,453.86 and 306,521.35
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Solution
The fourth proportional to 561,219.37, 774,453.86 and 306,521.35 is: 422,983.69
Step by Step Solution
- Step 1: Write the proportion equation
561,219.37 : 774,453.86 = 306,521.35 : x - Step 2: Convert to fraction form
561,219.37/774,453.86 = 306,521.35/x - Step 3: Cross multiply
561,219.37x = 774,453.86 × 306,521.35 - Step 4: Simplify right side
561,219.37x = 237,386,640,360.63 - Step 5: Solve for x
x = 237,386,640,360.63/561,219.37 - Step 6: Final answer
x = 422,983.69
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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.