Finding the Fourth Proportional to 663,296.28, 915,351.95 and 376,832.09
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Solution
The fourth proportional to 663,296.28, 915,351.95 and 376,832.09 is: 520,030.04
Step by Step Solution
- Step 1: Write the proportion equation
663,296.28 : 915,351.95 = 376,832.09 : x - Step 2: Convert to fraction form
663,296.28/915,351.95 = 376,832.09/x - Step 3: Cross multiply
663,296.28x = 915,351.95 × 376,832.09 - Step 4: Simplify right side
663,296.28x = 344,933,988,404.08 - Step 5: Solve for x
x = 344,933,988,404.08/663,296.28 - Step 6: Final answer
x = 520,030.04
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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.