Finding the Fourth Proportional to 518,995.76, 716,197.82 and 304,278.80
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Solution
The fourth proportional to 518,995.76, 716,197.82 and 304,278.80 is: 419,895.17
Step by Step Solution
- Step 1: Write the proportion equation
518,995.76 : 716,197.82 = 304,278.80 : x - Step 2: Convert to fraction form
518,995.76/716,197.82 = 304,278.80/x - Step 3: Cross multiply
518,995.76x = 716,197.82 × 304,278.80 - Step 4: Simplify right side
518,995.76x = 217,923,813,232.22 - Step 5: Solve for x
x = 217,923,813,232.22/518,995.76 - Step 6: Final answer
x = 419,895.17
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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.