Finding the Fourth Proportional to 921,397.11, 1,382,165.63 and 313,996.65
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Solution
The fourth proportional to 921,397.11, 1,382,165.63 and 313,996.65 is: 471,018.82
Step by Step Solution
- Step 1: Write the proportion equation
921,397.11 : 1,382,165.63 = 313,996.65 : x - Step 2: Convert to fraction form
921,397.11/1,382,165.63 = 313,996.65/x - Step 3: Cross multiply
921,397.11x = 1,382,165.63 × 313,996.65 - Step 4: Simplify right side
921,397.11x = 433,995,377,565.14 - Step 5: Solve for x
x = 433,995,377,565.14/921,397.11 - Step 6: Final answer
x = 471,018.82
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.