Finding the Fourth Proportional to 2,138,586.86, 3,207,921.23 and 699,275.63
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Solution
The fourth proportional to 2,138,586.86, 3,207,921.23 and 699,275.63 is: 1,048,926.83
Step by Step Solution
- Step 1: Write the proportion equation
2,138,586.86 : 3,207,921.23 = 699,275.63 : x - Step 2: Convert to fraction form
2,138,586.86/3,207,921.23 = 699,275.63/x - Step 3: Cross multiply
2,138,586.86x = 3,207,921.23 × 699,275.63 - Step 4: Simplify right side
2,138,586.86x = 2,243,221,124,807.21 - Step 5: Solve for x
x = 2,243,221,124,807.21/2,138,586.86 - Step 6: Final answer
x = 1,048,926.83
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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.