Finding the Fourth Proportional to 663,303.36, 915,361.73 and 376,839.17
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Solution
The fourth proportional to 663,303.36, 915,361.73 and 376,839.17 is: 520,039.80
Step by Step Solution
- Step 1: Write the proportion equation
663,303.36 : 915,361.73 = 376,839.17 : x - Step 2: Convert to fraction form
663,303.36/915,361.73 = 376,839.17/x - Step 3: Cross multiply
663,303.36x = 915,361.73 × 376,839.17 - Step 4: Simplify right side
663,303.36x = 344,944,148,121.96 - Step 5: Solve for x
x = 344,944,148,121.96/663,303.36 - Step 6: Final answer
x = 520,039.80
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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.