Finding the Fourth Proportional to 722,954.86, 997,711.34 and 400,664.99
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Solution
The fourth proportional to 722,954.86, 997,711.34 and 400,664.99 is: 552,936.32
Step by Step Solution
- Step 1: Write the proportion equation
722,954.86 : 997,711.34 = 400,664.99 : x - Step 2: Convert to fraction form
722,954.86/997,711.34 = 400,664.99/x - Step 3: Cross multiply
722,954.86x = 997,711.34 × 400,664.99 - Step 4: Simplify right side
722,954.86x = 399,747,997,072.11 - Step 5: Solve for x
x = 399,747,997,072.11/722,954.86 - Step 6: Final answer
x = 552,936.32
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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.