Finding the Fourth Proportional to 554,935.62, 765,813.78 and 313,228.38
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Solution
The fourth proportional to 554,935.62, 765,813.78 and 313,228.38 is: 432,256.65
Step by Step Solution
- Step 1: Write the proportion equation
554,935.62 : 765,813.78 = 313,228.38 : x - Step 2: Convert to fraction form
554,935.62/765,813.78 = 313,228.38/x - Step 3: Cross multiply
554,935.62x = 765,813.78 × 313,228.38 - Step 4: Simplify right side
554,935.62x = 239,874,609,691.08 - Step 5: Solve for x
x = 239,874,609,691.08/554,935.62 - Step 6: Final answer
x = 432,256.65
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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.