Finding the Fourth Proportional to 554,860.38, 765,709.94 and 313,153.14
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Solution
The fourth proportional to 554,860.38, 765,709.94 and 313,153.14 is: 432,152.81
Step by Step Solution
- Step 1: Write the proportion equation
554,860.38 : 765,709.94 = 313,153.14 : x - Step 2: Convert to fraction form
554,860.38/765,709.94 = 313,153.14/x - Step 3: Cross multiply
554,860.38x = 765,709.94 × 313,153.14 - Step 4: Simplify right side
554,860.38x = 239,784,472,040.21 - Step 5: Solve for x
x = 239,784,472,040.21/554,860.38 - Step 6: Final answer
x = 432,152.81
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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.