Finding the Fourth Proportional to 1,471,128.08, 2,206,688.27 and 391,640.67
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Solution
The fourth proportional to 1,471,128.08, 2,206,688.27 and 391,640.67 is: 587,459.98
Step by Step Solution
- Step 1: Write the proportion equation
1,471,128.08 : 2,206,688.27 = 391,640.67 : x - Step 2: Convert to fraction form
1,471,128.08/2,206,688.27 = 391,640.67/x - Step 3: Cross multiply
1,471,128.08x = 2,206,688.27 × 391,640.67 - Step 4: Simplify right side
1,471,128.08x = 864,228,870,585.74 - Step 5: Solve for x
x = 864,228,870,585.74/1,471,128.08 - Step 6: Final answer
x = 587,459.98
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.