Finding the Fourth Proportional to 726,024.21, 1,001,937.89 and 399,351.11
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Solution
The fourth proportional to 726,024.21, 1,001,937.89 and 399,351.11 is: 551,117.99
Step by Step Solution
- Step 1: Write the proportion equation
726,024.21 : 1,001,937.89 = 399,351.11 : x - Step 2: Convert to fraction form
726,024.21/1,001,937.89 = 399,351.11/x - Step 3: Cross multiply
726,024.21x = 1,001,937.89 × 399,351.11 - Step 4: Simplify right side
726,024.21x = 400,125,001,516.11 - Step 5: Solve for x
x = 400,125,001,516.11/726,024.21 - Step 6: Final answer
x = 551,117.99
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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.