Finding the Fourth Proportional to 563,557.15, 777,738.68 and 308,919.07
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Solution
The fourth proportional to 563,557.15, 777,738.68 and 308,919.07 is: 426,324.66
Step by Step Solution
- Step 1: Write the proportion equation
563,557.15 : 777,738.68 = 308,919.07 : x - Step 2: Convert to fraction form
563,557.15/777,738.68 = 308,919.07/x - Step 3: Cross multiply
563,557.15x = 777,738.68 × 308,919.07 - Step 4: Simplify right side
563,557.15x = 240,258,309,728.63 - Step 5: Solve for x
x = 240,258,309,728.63/563,557.15 - Step 6: Final answer
x = 426,324.66
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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.