Finding the Fourth Proportional to 663,302.13, 915,359.97 and 376,837.93
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Solution
The fourth proportional to 663,302.13, 915,359.97 and 376,837.93 is: 520,038.07
Step by Step Solution
- Step 1: Write the proportion equation
663,302.13 : 915,359.97 = 376,837.93 : x - Step 2: Convert to fraction form
663,302.13/915,359.97 = 376,837.93/x - Step 3: Cross multiply
663,302.13x = 915,359.97 × 376,837.93 - Step 4: Simplify right side
663,302.13x = 344,942,358,857.00 - Step 5: Solve for x
x = 344,942,358,857.00/663,302.13 - Step 6: Final answer
x = 520,038.07
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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.