Finding the Fourth Proportional to 3,172,295.61, 4,377,847.23 and 1,721,988.99
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Solution
The fourth proportional to 3,172,295.61, 4,377,847.23 and 1,721,988.99 is: 2,376,387.85
Step by Step Solution
- Step 1: Write the proportion equation
3,172,295.61 : 4,377,847.23 = 1,721,988.99 : x - Step 2: Convert to fraction form
3,172,295.61/4,377,847.23 = 1,721,988.99/x - Step 3: Cross multiply
3,172,295.61x = 4,377,847.23 × 1,721,988.99 - Step 4: Simplify right side
3,172,295.61x = 7,538,604,729,962.00 - Step 5: Solve for x
x = 7,538,604,729,962.00/3,172,295.61 - Step 6: Final answer
x = 2,376,387.85
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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.