Finding the Fourth Proportional to 561,356.52, 774,670.68 and 306,709.62
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Solution
The fourth proportional to 561,356.52, 774,670.68 and 306,709.62 is: 423,258.56
Step by Step Solution
- Step 1: Write the proportion equation
561,356.52 : 774,670.68 = 306,709.62 : x - Step 2: Convert to fraction form
561,356.52/774,670.68 = 306,709.62/x - Step 3: Cross multiply
561,356.52x = 774,670.68 × 306,709.62 - Step 4: Simplify right side
561,356.52x = 237,598,949,887.94 - Step 5: Solve for x
x = 237,598,949,887.94/561,356.52 - Step 6: Final answer
x = 423,258.56
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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.