Finding the Fourth Proportional to 563,461.15, 777,578.79 and 305,338.66
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Solution
The fourth proportional to 563,461.15, 777,578.79 and 305,338.66 is: 421,368.65
Step by Step Solution
- Step 1: Write the proportion equation
563,461.15 : 777,578.79 = 305,338.66 : x - Step 2: Convert to fraction form
563,461.15/777,578.79 = 305,338.66/x - Step 3: Cross multiply
563,461.15x = 777,578.79 × 305,338.66 - Step 4: Simplify right side
563,461.15x = 237,424,865,783.02 - Step 5: Solve for x
x = 237,424,865,783.02/563,461.15 - Step 6: Final answer
x = 421,368.65
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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.