Finding the Fourth Proportional to 3,172,270.51, 4,377,703.40 and 1,721,934.91
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Solution
The fourth proportional to 3,172,270.51, 4,377,703.40 and 1,721,934.91 is: 2,376,253.94
Step by Step Solution
- Step 1: Write the proportion equation
3,172,270.51 : 4,377,703.40 = 1,721,934.91 : x - Step 2: Convert to fraction form
3,172,270.51/4,377,703.40 = 1,721,934.91/x - Step 3: Cross multiply
3,172,270.51x = 4,377,703.40 × 1,721,934.91 - Step 4: Simplify right side
3,172,270.51x = 7,538,120,296,989.02 - Step 5: Solve for x
x = 7,538,120,296,989.02/3,172,270.51 - Step 6: Final answer
x = 2,376,253.94
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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.