Finding the Fourth Proportional to 2,124,502.74, 2,931,722.13 and 1,206,729.05
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Solution
The fourth proportional to 2,124,502.74, 2,931,722.13 and 1,206,729.05 is: 1,665,234.02
Step by Step Solution
- Step 1: Write the proportion equation
2,124,502.74 : 2,931,722.13 = 1,206,729.05 : x - Step 2: Convert to fraction form
2,124,502.74/2,931,722.13 = 1,206,729.05/x - Step 3: Cross multiply
2,124,502.74x = 2,931,722.13 × 1,206,729.05 - Step 4: Simplify right side
2,124,502.74x = 3,537,794,246,140.27 - Step 5: Solve for x
x = 3,537,794,246,140.27/2,124,502.74 - Step 6: Final answer
x = 1,665,234.02
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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.