Finding the Fourth Proportional to 2,172,133.74, 2,997,565.23 and 1,205,353.99
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Solution
The fourth proportional to 2,172,133.74, 2,997,565.23 and 1,205,353.99 is: 1,663,399.98
Step by Step Solution
- Step 1: Write the proportion equation
2,172,133.74 : 2,997,565.23 = 1,205,353.99 : x - Step 2: Convert to fraction form
2,172,133.74/2,997,565.23 = 1,205,353.99/x - Step 3: Cross multiply
2,172,133.74x = 2,997,565.23 × 1,205,353.99 - Step 4: Simplify right side
2,172,133.74x = 3,613,127,218,532.80 - Step 5: Solve for x
x = 3,613,127,218,532.80/2,172,133.74 - Step 6: Final answer
x = 1,663,399.98
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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.